diff --git a/UPGRADE-4.0.md b/UPGRADE-4.0.md
index 45604b0aa..34a12f5a9 100644
--- a/UPGRADE-4.0.md
+++ b/UPGRADE-4.0.md
@@ -6,7 +6,8 @@
 - The `IgnoreErrorsIntegration` integration was removed. Use the `ignore_errors` option instead.
 - `Sentry\Exception\InvalidArgumentException` was removed. Use `\InvalidArgumentException` instead.
 - `Sentry\Exception/ExceptionInterface` was removed.
-- Removed `ClientBuilderInterface::setSerializer()`
-- Removed `ClientBuilder::setSerializer()`
+- Removed `ClientBuilderInterface::setSerializer()`.
+- Removed `ClientBuilder::setSerializer()`.
 - Removed `Client::__construct()` param SerializerInterface $serializer.
-- Change return type of `Dsn:: getProjectId()` to string
+- Change return type of `Dsn:: getProjectId()` to string.
+- Most setters now return `$this` instead of `void`.
diff --git a/src/CheckIn.php b/src/CheckIn.php
index f49e83a7d..1a0eafbe5 100644
--- a/src/CheckIn.php
+++ b/src/CheckIn.php
@@ -80,9 +80,11 @@ public function getMonitorSlug(): string
         return $this->monitorSlug;
     }
 
-    public function setMonitorSlug(string $monitorSlug): void
+    public function setMonitorSlug(string $monitorSlug): self
     {
         $this->monitorSlug = $monitorSlug;
+
+        return $this;
     }
 
     public function getStatus(): CheckInStatus
@@ -90,9 +92,11 @@ public function getStatus(): CheckInStatus
         return $this->status;
     }
 
-    public function setStatus(CheckInStatus $status): void
+    public function setStatus(CheckInStatus $status): self
     {
         $this->status = $status;
+
+        return $this;
     }
 
     public function getRelease(): ?string
@@ -100,9 +104,11 @@ public function getRelease(): ?string
         return $this->release;
     }
 
-    public function setRelease(string $release): void
+    public function setRelease(string $release): self
     {
         $this->release = $release;
+
+        return $this;
     }
 
     public function getEnvironment(): ?string
@@ -110,9 +116,11 @@ public function getEnvironment(): ?string
         return $this->environment;
     }
 
-    public function setEnvironment(string $environment): void
+    public function setEnvironment(string $environment): self
     {
         $this->environment = $environment;
+
+        return $this;
     }
 
     /**
@@ -126,9 +134,11 @@ public function getDuration()
     /**
      * @param int|float|null $duration The duration of the check-in in seconds
      */
-    public function setDuration($duration): void
+    public function setDuration($duration): self
     {
         $this->duration = $duration;
+
+        return $this;
     }
 
     public function getMonitorConfig(): ?MonitorConfig
@@ -136,8 +146,10 @@ public function getMonitorConfig(): ?MonitorConfig
         return $this->monitorConfig;
     }
 
-    public function setMonitorConfig(?MonitorConfig $monitorConfig): void
+    public function setMonitorConfig(?MonitorConfig $monitorConfig): self
     {
         $this->monitorConfig = $monitorConfig;
+
+        return $this;
     }
 }
diff --git a/src/ClientBuilder.php b/src/ClientBuilder.php
index 680ff73c6..0594ba08e 100644
--- a/src/ClientBuilder.php
+++ b/src/ClientBuilder.php
@@ -75,7 +75,7 @@ public function __construct(?Options $options = null)
     /**
      * @param array<string, mixed> $options The client options, in naked array form
      */
-    public static function create(array $options = []): ClientBuilder
+    public static function create(array $options = []): self
     {
         return new self(new Options($options));
     }
@@ -85,28 +85,28 @@ public function getOptions(): Options
         return $this->options;
     }
 
-    public function setRepresentationSerializer(RepresentationSerializerInterface $representationSerializer): ClientBuilder
+    public function setRepresentationSerializer(RepresentationSerializerInterface $representationSerializer): self
     {
         $this->representationSerializer = $representationSerializer;
 
         return $this;
     }
 
-    public function setLogger(LoggerInterface $logger): ClientBuilder
+    public function setLogger(LoggerInterface $logger): self
     {
         $this->logger = $logger;
 
         return $this;
     }
 
-    public function setSdkIdentifier(string $sdkIdentifier): ClientBuilder
+    public function setSdkIdentifier(string $sdkIdentifier): self
     {
         $this->sdkIdentifier = $sdkIdentifier;
 
         return $this;
     }
 
-    public function setSdkVersion(string $sdkVersion): ClientBuilder
+    public function setSdkVersion(string $sdkVersion): self
     {
         $this->sdkVersion = $sdkVersion;
 
@@ -118,7 +118,7 @@ public function getTransport(): TransportInterface
         return $this->transport;
     }
 
-    public function setTransport(TransportInterface $transport): ClientBuilder
+    public function setTransport(TransportInterface $transport): self
     {
         $this->transport = $transport;
 
@@ -130,7 +130,7 @@ public function getHttpClient(): HttpClientInterface
         return $this->httpClient;
     }
 
-    public function setHttpClient(HttpClientInterface $httpClient): ClientBuilder
+    public function setHttpClient(HttpClientInterface $httpClient): self
     {
         $this->httpClient = $httpClient;
 
diff --git a/src/Event.php b/src/Event.php
index 57d7d0991..b9fd06e27 100644
--- a/src/Event.php
+++ b/src/Event.php
@@ -233,9 +233,11 @@ public function getSdkIdentifier(): string
      *
      * @internal
      */
-    public function setSdkIdentifier(string $sdkIdentifier): void
+    public function setSdkIdentifier(string $sdkIdentifier): self
     {
         $this->sdkIdentifier = $sdkIdentifier;
+
+        return $this;
     }
 
     /**
@@ -253,9 +255,11 @@ public function getSdkVersion(): string
      *
      * @internal
      */
-    public function setSdkVersion(string $sdkVersion): void
+    public function setSdkVersion(string $sdkVersion): self
     {
         $this->sdkVersion = $sdkVersion;
+
+        return $this;
     }
 
     /**
@@ -269,9 +273,11 @@ public function getTimestamp(): ?float
     /**
      * Sets the timestamp of when the Event was created.
      */
-    public function setTimestamp(?float $timestamp): void
+    public function setTimestamp(?float $timestamp): self
     {
         $this->timestamp = $timestamp;
+
+        return $this;
     }
 
     /**
@@ -287,9 +293,11 @@ public function getLevel(): ?Severity
      *
      * @param Severity|null $level The severity
      */
-    public function setLevel(?Severity $level): void
+    public function setLevel(?Severity $level): self
     {
         $this->level = $level;
+
+        return $this;
     }
 
     /**
@@ -305,9 +313,11 @@ public function getLogger(): ?string
      *
      * @param string|null $logger The logger name
      */
-    public function setLogger(?string $logger): void
+    public function setLogger(?string $logger): self
     {
         $this->logger = $logger;
+
+        return $this;
     }
 
     /**
@@ -325,14 +335,11 @@ public function getTransaction(): ?string
      *
      * @param string|null $transaction The transaction name
      */
-    public function setTransaction(?string $transaction): void
+    public function setTransaction(?string $transaction): self
     {
         $this->transaction = $transaction;
-    }
 
-    public function setCheckIn(?CheckIn $checkIn): void
-    {
-        $this->checkIn = $checkIn;
+        return $this;
     }
 
     public function getCheckIn(): ?CheckIn
@@ -340,6 +347,13 @@ public function getCheckIn(): ?CheckIn
         return $this->checkIn;
     }
 
+    public function setCheckIn(?CheckIn $checkIn): self
+    {
+        $this->checkIn = $checkIn;
+
+        return $this;
+    }
+
     /**
      * Gets the name of the server.
      */
@@ -353,9 +367,11 @@ public function getServerName(): ?string
      *
      * @param string|null $serverName The server name
      */
-    public function setServerName(?string $serverName): void
+    public function setServerName(?string $serverName): self
     {
         $this->serverName = $serverName;
+
+        return $this;
     }
 
     /**
@@ -371,9 +387,11 @@ public function getRelease(): ?string
      *
      * @param string|null $release The release
      */
-    public function setRelease(?string $release): void
+    public function setRelease(?string $release): self
     {
         $this->release = $release;
+
+        return $this;
     }
 
     /**
@@ -409,11 +427,13 @@ public function getMessageParams(): array
      * @param string[]    $params    The parameters to use to format the message
      * @param string|null $formatted The formatted message
      */
-    public function setMessage(string $message, array $params = [], ?string $formatted = null): void
+    public function setMessage(string $message, array $params = [], ?string $formatted = null): self
     {
         $this->message = $message;
         $this->messageParams = $params;
         $this->messageFormatted = $formatted;
+
+        return $this;
     }
 
     /**
@@ -431,9 +451,11 @@ public function getModules(): array
      *
      * @param array<string, string> $modules
      */
-    public function setModules(array $modules): void
+    public function setModules(array $modules): self
     {
         $this->modules = $modules;
+
+        return $this;
     }
 
     /**
@@ -451,9 +473,11 @@ public function getRequest(): array
      *
      * @param array<string, mixed> $request The request data
      */
-    public function setRequest(array $request): void
+    public function setRequest(array $request): self
     {
         $this->request = $request;
+
+        return $this;
     }
 
     /**
@@ -496,9 +520,11 @@ public function getExtra(): array
      *
      * @param array<string, mixed> $extra The context object
      */
-    public function setExtra(array $extra): void
+    public function setExtra(array $extra): self
     {
         $this->extra = $extra;
+
+        return $this;
     }
 
     /**
@@ -516,9 +542,11 @@ public function getTags(): array
      *
      * @param array<string, string> $tags The tags to set
      */
-    public function setTags(array $tags): void
+    public function setTags(array $tags): self
     {
         $this->tags = $tags;
+
+        return $this;
     }
 
     /**
@@ -527,9 +555,11 @@ public function setTags(array $tags): void
      * @param string $key   The key that uniquely identifies the tag
      * @param string $value The value
      */
-    public function setTag(string $key, string $value): void
+    public function setTag(string $key, string $value): self
     {
         $this->tags[$key] = $value;
+
+        return $this;
     }
 
     /**
@@ -537,9 +567,11 @@ public function setTag(string $key, string $value): void
      *
      * @param string $key The key that uniquely identifies the tag
      */
-    public function removeTag(string $key): void
+    public function removeTag(string $key): self
     {
         unset($this->tags[$key]);
+
+        return $this;
     }
 
     /**
@@ -555,9 +587,11 @@ public function getUser(): ?UserDataBag
      *
      * @param UserDataBag|null $user The context object
      */
-    public function setUser(?UserDataBag $user): void
+    public function setUser(?UserDataBag $user): self
     {
         $this->user = $user;
+
+        return $this;
     }
 
     /**
@@ -573,9 +607,11 @@ public function getOsContext(): ?OsContext
      *
      * @param OsContext|null $osContext The context object
      */
-    public function setOsContext(?OsContext $osContext): void
+    public function setOsContext(?OsContext $osContext): self
     {
         $this->osContext = $osContext;
+
+        return $this;
     }
 
     /**
@@ -591,9 +627,11 @@ public function getRuntimeContext(): ?RuntimeContext
      *
      * @param RuntimeContext|null $runtimeContext The context object
      */
-    public function setRuntimeContext(?RuntimeContext $runtimeContext): void
+    public function setRuntimeContext(?RuntimeContext $runtimeContext): self
     {
         $this->runtimeContext = $runtimeContext;
+
+        return $this;
     }
 
     /**
@@ -613,9 +651,11 @@ public function getFingerprint(): array
      *
      * @param string[] $fingerprint The strings
      */
-    public function setFingerprint(array $fingerprint): void
+    public function setFingerprint(array $fingerprint): self
     {
         $this->fingerprint = $fingerprint;
+
+        return $this;
     }
 
     /**
@@ -631,9 +671,11 @@ public function getEnvironment(): ?string
      *
      * @param string|null $environment The name of the environment
      */
-    public function setEnvironment(?string $environment): void
+    public function setEnvironment(?string $environment): self
     {
         $this->environment = $environment;
+
+        return $this;
     }
 
     /**
@@ -651,9 +693,11 @@ public function getBreadcrumbs(): array
      *
      * @param Breadcrumb[] $breadcrumbs The breadcrumb array
      */
-    public function setBreadcrumb(array $breadcrumbs): void
+    public function setBreadcrumb(array $breadcrumbs): self
     {
         $this->breadcrumbs = $breadcrumbs;
+
+        return $this;
     }
 
     /**
@@ -671,7 +715,7 @@ public function getExceptions(): array
      *
      * @param ExceptionDataBag[] $exceptions The exceptions
      */
-    public function setExceptions(array $exceptions): void
+    public function setExceptions(array $exceptions): self
     {
         foreach ($exceptions as $exception) {
             if (!$exception instanceof ExceptionDataBag) {
@@ -680,6 +724,8 @@ public function setExceptions(array $exceptions): void
         }
 
         $this->exceptions = $exceptions;
+
+        return $this;
     }
 
     /**
@@ -695,9 +741,11 @@ public function getStacktrace(): ?Stacktrace
      *
      * @param Stacktrace|null $stacktrace The stacktrace instance
      */
-    public function setStacktrace(?Stacktrace $stacktrace): void
+    public function setStacktrace(?Stacktrace $stacktrace): self
     {
         $this->stacktrace = $stacktrace;
+
+        return $this;
     }
 
     public function getType(): EventType
@@ -711,9 +759,11 @@ public function getType(): EventType
      * @param string $name The name that uniquely identifies the SDK metadata
      * @param mixed  $data The data of the SDK metadata
      */
-    public function setSdkMetadata(string $name, $data): void
+    public function setSdkMetadata(string $name, $data): self
     {
         $this->sdkMetadata[$name] = $data;
+
+        return $this;
     }
 
     /**
@@ -749,9 +799,11 @@ public function getStartTimestamp(): ?float
      *
      * @param float|null $startTimestamp The start time of the measurement
      */
-    public function setStartTimestamp(?float $startTimestamp): void
+    public function setStartTimestamp(?float $startTimestamp): self
     {
         $this->startTimestamp = $startTimestamp;
+
+        return $this;
     }
 
     /**
@@ -769,14 +821,11 @@ public function getSpans(): array
      *
      * @param Span[] $spans The list of spans
      */
-    public function setSpans(array $spans): void
+    public function setSpans(array $spans): self
     {
         $this->spans = $spans;
-    }
 
-    public function setProfile(?Profile $profile): void
-    {
-        $this->profile = $profile;
+        return $this;
     }
 
     public function getProfile(): ?Profile
@@ -784,6 +833,13 @@ public function getProfile(): ?Profile
         return $this->profile;
     }
 
+    public function setProfile(?Profile $profile): self
+    {
+        $this->profile = $profile;
+
+        return $this;
+    }
+
     public function getTraceId(): ?string
     {
         $traceId = $this->getContexts()['trace']['trace_id'];
diff --git a/src/ExceptionDataBag.php b/src/ExceptionDataBag.php
index e93b6c617..3bdd36d4d 100644
--- a/src/ExceptionDataBag.php
+++ b/src/ExceptionDataBag.php
@@ -53,9 +53,11 @@ public function getType(): string
      *
      * @param string $type The exception type
      */
-    public function setType(string $type): void
+    public function setType(string $type): self
     {
         $this->type = $type;
+
+        return $this;
     }
 
     /**
@@ -69,9 +71,11 @@ public function getValue(): string
     /**
      * Sets the value of the exception.
      */
-    public function setValue(string $value): void
+    public function setValue(string $value): self
     {
         $this->value = $value;
+
+        return $this;
     }
 
     /**
@@ -87,9 +91,11 @@ public function getStacktrace(): ?Stacktrace
      *
      * @param Stacktrace $stacktrace The stacktrace
      */
-    public function setStacktrace(Stacktrace $stacktrace): void
+    public function setStacktrace(Stacktrace $stacktrace): self
     {
         $this->stacktrace = $stacktrace;
+
+        return $this;
     }
 
     /**
@@ -105,8 +111,10 @@ public function getMechanism(): ?ExceptionMechanism
      *
      * @param ExceptionMechanism|null $mechanism The mechanism that created this exception
      */
-    public function setMechanism(?ExceptionMechanism $mechanism): void
+    public function setMechanism(?ExceptionMechanism $mechanism): self
     {
         $this->mechanism = $mechanism;
+
+        return $this;
     }
 }
diff --git a/src/ExceptionMechanism.php b/src/ExceptionMechanism.php
index 9a3cf23ee..fed2081b1 100644
--- a/src/ExceptionMechanism.php
+++ b/src/ExceptionMechanism.php
@@ -83,8 +83,10 @@ public function getData(): array
      *
      * @param array<string, mixed> $data
      */
-    public function setData(array $data): void
+    public function setData(array $data): self
     {
         $this->data = $data;
+
+        return $this;
     }
 }
diff --git a/src/Frame.php b/src/Frame.php
index 4b2c34c0d..fa5b3e169 100644
--- a/src/Frame.php
+++ b/src/Frame.php
@@ -153,9 +153,11 @@ public function getPreContext(): array
      *
      * @param string[] $preContext The source code lines
      */
-    public function setPreContext(array $preContext): void
+    public function setPreContext(array $preContext): self
     {
         $this->preContext = $preContext;
+
+        return $this;
     }
 
     /**
@@ -173,9 +175,11 @@ public function getContextLine(): ?string
      *
      * @param string|null $contextLine The source code line
      */
-    public function setContextLine(?string $contextLine): void
+    public function setContextLine(?string $contextLine): self
     {
         $this->contextLine = $contextLine;
+
+        return $this;
     }
 
     /**
@@ -193,9 +197,11 @@ public function getPostContext(): array
      *
      * @param string[] $postContext The source code lines
      */
-    public function setPostContext(array $postContext): void
+    public function setPostContext(array $postContext): self
     {
         $this->postContext = $postContext;
+
+        return $this;
     }
 
     /**
@@ -213,9 +219,11 @@ public function isInApp(): bool
      *
      * @param bool $inApp flag indicating whether the frame is application-related
      */
-    public function setIsInApp(bool $inApp): void
+    public function setIsInApp(bool $inApp): self
     {
         $this->inApp = $inApp;
+
+        return $this;
     }
 
     /**
@@ -235,9 +243,11 @@ public function getVars(): array
      *
      * @param array<string, mixed> $vars The variables
      */
-    public function setVars(array $vars): void
+    public function setVars(array $vars): self
     {
         $this->vars = $vars;
+
+        return $this;
     }
 
     /**
diff --git a/src/Options.php b/src/Options.php
index 40e59ec04..e520e1a2f 100644
--- a/src/Options.php
+++ b/src/Options.php
@@ -81,11 +81,13 @@ public function getPrefixes(): array
      *
      * @param string[] $prefixes The prefixes
      */
-    public function setPrefixes(array $prefixes): void
+    public function setPrefixes(array $prefixes): self
     {
         $options = array_merge($this->options, ['prefixes' => $prefixes]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -103,11 +105,13 @@ public function getSampleRate(): float
      *
      * @param float $sampleRate The sampling factor
      */
-    public function setSampleRate(float $sampleRate): void
+    public function setSampleRate(float $sampleRate): self
     {
         $options = array_merge($this->options, ['sample_rate' => $sampleRate]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -125,11 +129,13 @@ public function getTracesSampleRate(): ?float
      *
      * @param bool|null $enableTracing Boolean if tracing should be enabled or not
      */
-    public function setEnableTracing(?bool $enableTracing): void
+    public function setEnableTracing(?bool $enableTracing): self
     {
         $options = array_merge($this->options, ['enable_tracing' => $enableTracing]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -148,11 +154,13 @@ public function getEnableTracing(): ?bool
      *
      * @param ?float $sampleRate The sampling factor
      */
-    public function setTracesSampleRate(?float $sampleRate): void
+    public function setTracesSampleRate(?float $sampleRate): self
     {
         $options = array_merge($this->options, ['traces_sample_rate' => $sampleRate]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     public function getProfilesSampleRate(): ?float
@@ -163,11 +171,13 @@ public function getProfilesSampleRate(): ?float
         return $value ?? null;
     }
 
-    public function setProfilesSampleRate(?float $sampleRate): void
+    public function setProfilesSampleRate(?float $sampleRate): self
     {
         $options = array_merge($this->options, ['profiles_sample_rate' => $sampleRate]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -197,11 +207,13 @@ public function shouldAttachStacktrace(): bool
      *
      * @param bool $enable Flag indicating if the stacktrace will be attached to captureMessage calls
      */
-    public function setAttachStacktrace(bool $enable): void
+    public function setAttachStacktrace(bool $enable): self
     {
         $options = array_merge($this->options, ['attach_stacktrace' => $enable]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -217,11 +229,13 @@ public function getContextLines(): ?int
      *
      * @param int|null $contextLines The number of lines of code
      */
-    public function setContextLines(?int $contextLines): void
+    public function setContextLines(?int $contextLines): self
     {
         $options = array_merge($this->options, ['context_lines' => $contextLines]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -237,11 +251,13 @@ public function isCompressionEnabled(): bool
      *
      * @param bool $enabled Flag indicating whether the request should be compressed
      */
-    public function setEnableCompression(bool $enabled): void
+    public function setEnableCompression(bool $enabled): self
     {
         $options = array_merge($this->options, ['enable_compression' => $enabled]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -257,11 +273,13 @@ public function getEnvironment(): ?string
      *
      * @param string|null $environment The environment
      */
-    public function setEnvironment(?string $environment): void
+    public function setEnvironment(?string $environment): self
     {
         $options = array_merge($this->options, ['environment' => $environment]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -279,11 +297,13 @@ public function getInAppExcludedPaths(): array
      *
      * @param string[] $paths The list of paths
      */
-    public function setInAppExcludedPaths(array $paths): void
+    public function setInAppExcludedPaths(array $paths): self
     {
         $options = array_merge($this->options, ['in_app_exclude' => $paths]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -301,11 +321,13 @@ public function getInAppIncludedPaths(): array
      *
      * @param string[] $paths The list of paths
      */
-    public function setInAppIncludedPaths(array $paths): void
+    public function setInAppIncludedPaths(array $paths): self
     {
         $options = array_merge($this->options, ['in_app_include' => $paths]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -329,13 +351,15 @@ public function getLogger(/* bool $triggerDeprecation = true */): string
      *
      * @deprecated since version 3.2, to be removed in 4.0
      */
-    public function setLogger(string $logger): void
+    public function setLogger(string $logger): self
     {
         @trigger_error(sprintf('Method %s() is deprecated since version 3.2 and will be removed in 4.0.', __METHOD__), \E_USER_DEPRECATED);
 
         $options = array_merge($this->options, ['logger' => $logger]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -351,11 +375,13 @@ public function getRelease(): ?string
      *
      * @param string|null $release The release
      */
-    public function setRelease(?string $release): void
+    public function setRelease(?string $release): self
     {
         $options = array_merge($this->options, ['release' => $release]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -379,11 +405,13 @@ public function getServerName(): string
      *
      * @param string $serverName The server name
      */
-    public function setServerName(string $serverName): void
+    public function setServerName(string $serverName): self
     {
         $options = array_merge($this->options, ['server_name' => $serverName]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -403,11 +431,13 @@ public function getIgnoreExceptions(): array
      *
      * @param string[] $ignoreErrors The list of exceptions to be ignored
      */
-    public function setIgnoreExceptions(array $ignoreErrors): void
+    public function setIgnoreExceptions(array $ignoreErrors): self
     {
         $options = array_merge($this->options, ['ignore_exceptions' => $ignoreErrors]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -425,11 +455,13 @@ public function getIgnoreTransactions(): array
      *
      * @param string[] $ignoreTransaction The list of transaction names to be ignored
      */
-    public function setIgnoreTransactions(array $ignoreTransaction): void
+    public function setIgnoreTransactions(array $ignoreTransaction): self
     {
         $options = array_merge($this->options, ['ignore_transactions' => $ignoreTransaction]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -451,11 +483,13 @@ public function getBeforeSendCallback(): callable
      *
      * @psalm-param callable(Event, ?EventHint): ?Event $callback
      */
-    public function setBeforeSendCallback(callable $callback): void
+    public function setBeforeSendCallback(callable $callback): self
     {
         $options = array_merge($this->options, ['before_send' => $callback]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -477,11 +511,13 @@ public function getBeforeSendTransactionCallback(): callable
      *
      * @psalm-param callable(Event, ?EventHint): ?Event $callback
      */
-    public function setBeforeSendTransactionCallback(callable $callback): void
+    public function setBeforeSendTransactionCallback(callable $callback): self
     {
         $options = array_merge($this->options, ['before_send_transaction' => $callback]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -499,11 +535,13 @@ public function getTracePropagationTargets(): ?array
      *
      * @param string[] $tracePropagationTargets Trace propagation targets
      */
-    public function setTracePropagationTargets(array $tracePropagationTargets): void
+    public function setTracePropagationTargets(array $tracePropagationTargets): self
     {
         $options = array_merge($this->options, ['trace_propagation_targets' => $tracePropagationTargets]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -521,11 +559,13 @@ public function getTags(): array
      *
      * @param array<string, string> $tags A list of tags
      */
-    public function setTags(array $tags): void
+    public function setTags(array $tags): self
     {
         $options = array_merge($this->options, ['tags' => $tags]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -541,11 +581,13 @@ public function getErrorTypes(): int
      *
      * @param int $errorTypes The bit mask
      */
-    public function setErrorTypes(int $errorTypes): void
+    public function setErrorTypes(int $errorTypes): self
     {
         $options = array_merge($this->options, ['error_types' => $errorTypes]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -561,11 +603,13 @@ public function getMaxBreadcrumbs(): int
      *
      * @param int $maxBreadcrumbs The maximum number of breadcrumbs
      */
-    public function setMaxBreadcrumbs(int $maxBreadcrumbs): void
+    public function setMaxBreadcrumbs(int $maxBreadcrumbs): self
     {
         $options = array_merge($this->options, ['max_breadcrumbs' => $maxBreadcrumbs]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -589,11 +633,13 @@ public function getBeforeBreadcrumbCallback(): callable
      *
      * @psalm-param callable(Breadcrumb): ?Breadcrumb $callback
      */
-    public function setBeforeBreadcrumbCallback(callable $callback): void
+    public function setBeforeBreadcrumbCallback(callable $callback): self
     {
         $options = array_merge($this->options, ['before_breadcrumb' => $callback]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -603,11 +649,13 @@ public function setBeforeBreadcrumbCallback(callable $callback): void
      *
      * @param IntegrationInterface[]|callable(IntegrationInterface[]): IntegrationInterface[] $integrations The list or callable
      */
-    public function setIntegrations($integrations): void
+    public function setIntegrations($integrations): self
     {
         $options = array_merge($this->options, ['integrations' => $integrations]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -620,11 +668,13 @@ public function getIntegrations()
         return $this->options['integrations'];
     }
 
-    public function setTransport(TransportInterface $transport): void
+    public function setTransport(TransportInterface $transport): self
     {
         $options = array_merge($this->options, ['transport' => $transport]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     public function getTransport(): ?TransportInterface
@@ -632,11 +682,13 @@ public function getTransport(): ?TransportInterface
         return $this->options['transport'];
     }
 
-    public function setHttpClient(HttpClientInterface $httpClient): void
+    public function setHttpClient(HttpClientInterface $httpClient): self
     {
         $options = array_merge($this->options, ['http_client' => $httpClient]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     public function getHttpClient(): ?HttpClientInterface
@@ -657,11 +709,13 @@ public function shouldSendDefaultPii(): bool
      *
      * @param bool $enable Flag indicating if default PII will be sent
      */
-    public function setSendDefaultPii(bool $enable): void
+    public function setSendDefaultPii(bool $enable): self
     {
         $options = array_merge($this->options, ['send_default_pii' => $enable]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -677,11 +731,13 @@ public function hasDefaultIntegrations(): bool
      *
      * @param bool $enable Flag indicating whether the default integrations should be enabled
      */
-    public function setDefaultIntegrations(bool $enable): void
+    public function setDefaultIntegrations(bool $enable): self
     {
         $options = array_merge($this->options, ['default_integrations' => $enable]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -697,11 +753,13 @@ public function getMaxValueLength(): int
      *
      * @param int $maxValueLength The number of characters after which the values containing text will be truncated
      */
-    public function setMaxValueLength(int $maxValueLength): void
+    public function setMaxValueLength(int $maxValueLength): self
     {
         $options = array_merge($this->options, ['max_value_length' => $maxValueLength]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -717,11 +775,13 @@ public function getHttpProxy(): ?string
      *
      * @param string|null $httpProxy The http proxy
      */
-    public function setHttpProxy(?string $httpProxy): void
+    public function setHttpProxy(?string $httpProxy): self
     {
         $options = array_merge($this->options, ['http_proxy' => $httpProxy]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     public function getHttpProxyAuthentication(): ?string
@@ -729,11 +789,13 @@ public function getHttpProxyAuthentication(): ?string
         return $this->options['http_proxy_authentication'];
     }
 
-    public function setHttpProxyAuthentication(?string $httpProxy): void
+    public function setHttpProxyAuthentication(?string $httpProxy): self
     {
         $options = array_merge($this->options, ['http_proxy_authentication' => $httpProxy]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -749,11 +811,13 @@ public function getHttpConnectTimeout(): float
      *
      * @param float $httpConnectTimeout The amount of time in seconds
      */
-    public function setHttpConnectTimeout(float $httpConnectTimeout): void
+    public function setHttpConnectTimeout(float $httpConnectTimeout): self
     {
         $options = array_merge($this->options, ['http_connect_timeout' => $httpConnectTimeout]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -771,11 +835,13 @@ public function getHttpTimeout(): float
      *
      * @param float $httpTimeout The amount of time in seconds
      */
-    public function setHttpTimeout(float $httpTimeout): void
+    public function setHttpTimeout(float $httpTimeout): self
     {
         $options = array_merge($this->options, ['http_timeout' => $httpTimeout]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     public function getHttpSslVerifyPeer(): bool
@@ -783,11 +849,13 @@ public function getHttpSslVerifyPeer(): bool
         return $this->options['http_ssl_verify_peer'];
     }
 
-    public function setHttpSslVerifyPeer(bool $httpSslVerifyPeer): void
+    public function setHttpSslVerifyPeer(bool $httpSslVerifyPeer): self
     {
         $options = array_merge($this->options, ['http_ssl_verify_peer' => $httpSslVerifyPeer]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -807,11 +875,13 @@ public function shouldCaptureSilencedErrors(): bool
      * @param bool $shouldCapture If set to true, errors silenced through the @
      *                            operator will be reported, ignored otherwise
      */
-    public function setCaptureSilencedErrors(bool $shouldCapture): void
+    public function setCaptureSilencedErrors(bool $shouldCapture): self
     {
         $options = array_merge($this->options, ['capture_silenced_errors' => $shouldCapture]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -841,11 +911,13 @@ public function getMaxRequestBodySize(): string
      *                                      request body for as long as sentry can
      *                                      make sense of it
      */
-    public function setMaxRequestBodySize(string $maxRequestBodySize): void
+    public function setMaxRequestBodySize(string $maxRequestBodySize): self
     {
         $options = array_merge($this->options, ['max_request_body_size' => $maxRequestBodySize]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -866,11 +938,13 @@ public function getClassSerializers(): array
      *
      * @param array<string, callable> $serializers The list of serializer callbacks
      */
-    public function setClassSerializers(array $serializers): void
+    public function setClassSerializers(array $serializers): self
     {
         $options = array_merge($this->options, ['class_serializers' => $serializers]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -891,11 +965,13 @@ public function getTracesSampler(): ?callable
      *
      * @psalm-param null|callable(\Sentry\Tracing\SamplingContext): float $sampler
      */
-    public function setTracesSampler(?callable $sampler): void
+    public function setTracesSampler(?callable $sampler): self
     {
         $options = array_merge($this->options, ['traces_sampler' => $sampler]);
 
         $this->options = $this->resolver->resolve($options);
+
+        return $this;
     }
 
     /**
@@ -986,7 +1062,7 @@ private function configureOptions(OptionsResolver $resolver): void
         $resolver->setAllowedTypes('default_integrations', 'bool');
         $resolver->setAllowedTypes('max_value_length', 'int');
         $resolver->setAllowedTypes('transport', ['null', TransportInterface::class]);
-        $resolver->setAllowedTypes('http_client', ['null', HttpCLientInterface::class]);
+        $resolver->setAllowedTypes('http_client', ['null', HttpClientInterface::class]);
         $resolver->setAllowedTypes('http_proxy', ['null', 'string']);
         $resolver->setAllowedTypes('http_proxy_authentication', ['null', 'string']);
         $resolver->setAllowedTypes('http_connect_timeout', ['int', 'float']);
diff --git a/src/Stacktrace.php b/src/Stacktrace.php
index 3b532a214..52633602c 100644
--- a/src/Stacktrace.php
+++ b/src/Stacktrace.php
@@ -69,9 +69,11 @@ public function getFrame(int $index): Frame
      *
      * @param Frame $frame The frame
      */
-    public function addFrame(Frame $frame): void
+    public function addFrame(Frame $frame): self
     {
         array_unshift($this->frames, $frame);
+
+        return $this;
     }
 
     /**
@@ -81,7 +83,7 @@ public function addFrame(Frame $frame): void
      *
      * @throws \OutOfBoundsException If the index is out of range
      */
-    public function removeFrame(int $index): void
+    public function removeFrame(int $index): self
     {
         if (!isset($this->frames[$index])) {
             throw new \OutOfBoundsException(sprintf('Cannot remove the frame at index %d.', $index));
@@ -92,5 +94,7 @@ public function removeFrame(int $index): void
         }
 
         array_splice($this->frames, $index, 1);
+
+        return $this;
     }
 }
diff --git a/src/Tracing/DynamicSamplingContext.php b/src/Tracing/DynamicSamplingContext.php
index 75c4c9d29..c3a704a53 100644
--- a/src/Tracing/DynamicSamplingContext.php
+++ b/src/Tracing/DynamicSamplingContext.php
@@ -40,13 +40,15 @@ private function __construct()
      * @param string $key   the list member key
      * @param string $value the list member value
      */
-    public function set(string $key, string $value): void
+    public function set(string $key, string $value): self
     {
         if ($this->isFrozen) {
-            return;
+            return $this;
         }
 
         $this->entries[$key] = $value;
+
+        return $this;
     }
 
     /**
@@ -73,9 +75,11 @@ public function get(string $key, ?string $default = null): ?string
     /**
      * Mark the dsc as frozen.
      */
-    public function freeze(): void
+    public function freeze(): self
     {
         $this->isFrozen = true;
+
+        return $this;
     }
 
     /**
diff --git a/src/Tracing/PropagationContext.php b/src/Tracing/PropagationContext.php
index f05f00667..851ecc527 100644
--- a/src/Tracing/PropagationContext.php
+++ b/src/Tracing/PropagationContext.php
@@ -130,9 +130,11 @@ public function getSpanId(): SpanId
         return $this->spanId;
     }
 
-    public function setSpanId(SpanId $spanId): void
+    public function setSpanId(SpanId $spanId): self
     {
         $this->spanId = $spanId;
+
+        return $this;
     }
 
     public function getDynamicSamplingContext(): ?DynamicSamplingContext
@@ -140,9 +142,11 @@ public function getDynamicSamplingContext(): ?DynamicSamplingContext
         return $this->dynamicSamplingContext;
     }
 
-    public function setDynamicSamplingContext(DynamicSamplingContext $dynamicSamplingContext): void
+    public function setDynamicSamplingContext(DynamicSamplingContext $dynamicSamplingContext): self
     {
         $this->dynamicSamplingContext = $dynamicSamplingContext;
+
+        return $this;
     }
 
     private static function parseTraceAndBaggage(string $sentryTrace, string $baggage): self
diff --git a/src/Tracing/SamplingContext.php b/src/Tracing/SamplingContext.php
index f698286a7..bee540bfb 100644
--- a/src/Tracing/SamplingContext.php
+++ b/src/Tracing/SamplingContext.php
@@ -49,9 +49,11 @@ public function getParentSampled(): ?bool
     /**
      * Sets the sampling decision from the parent transaction, if any.
      */
-    public function setParentSampled(?bool $parentSampled): void
+    public function setParentSampled(?bool $parentSampled): self
     {
         $this->parentSampled = $parentSampled;
+
+        return $this;
     }
 
     /**
@@ -59,9 +61,11 @@ public function setParentSampled(?bool $parentSampled): void
      *
      * @param array<string, mixed>|null $additionalContext
      */
-    public function setAdditionalContext(?array $additionalContext): void
+    public function setAdditionalContext(?array $additionalContext): self
     {
         $this->additionalContext = $additionalContext;
+
+        return $this;
     }
 
     /**
diff --git a/src/Tracing/Span.php b/src/Tracing/Span.php
index ec0a016a8..496efb2d4 100644
--- a/src/Tracing/Span.php
+++ b/src/Tracing/Span.php
@@ -111,9 +111,11 @@ public function __construct(?SpanContext $context = null)
      *
      * @param SpanId $spanId The ID
      */
-    public function setSpanId(SpanId $spanId): void
+    public function setSpanId(SpanId $spanId): self
     {
         $this->spanId = $spanId;
+
+        return $this;
     }
 
     /**
@@ -129,9 +131,11 @@ public function getTraceId(): TraceId
      *
      * @param TraceId $traceId The ID
      */
-    public function setTraceId(TraceId $traceId): void
+    public function setTraceId(TraceId $traceId): self
     {
         $this->traceId = $traceId;
+
+        return $this;
     }
 
     /**
@@ -147,9 +151,11 @@ public function getParentSpanId(): ?SpanId
      *
      * @param SpanId|null $parentSpanId The ID
      */
-    public function setParentSpanId(?SpanId $parentSpanId): void
+    public function setParentSpanId(?SpanId $parentSpanId): self
     {
         $this->parentSpanId = $parentSpanId;
+
+        return $this;
     }
 
     /**
@@ -165,9 +171,11 @@ public function getStartTimestamp(): float
      *
      * @param float $startTimestamp The timestamp
      */
-    public function setStartTimestamp(float $startTimestamp): void
+    public function setStartTimestamp(float $startTimestamp): self
     {
         $this->startTimestamp = $startTimestamp;
+
+        return $this;
     }
 
     /**
@@ -193,9 +201,11 @@ public function getDescription(): ?string
      *
      * @param string|null $description The description
      */
-    public function setDescription(?string $description): void
+    public function setDescription(?string $description): self
     {
         $this->description = $description;
+
+        return $this;
     }
 
     /**
@@ -211,9 +221,11 @@ public function getOp(): ?string
      *
      * @param string|null $op The short code
      */
-    public function setOp(?string $op): void
+    public function setOp(?string $op): self
     {
         $this->op = $op;
+
+        return $this;
     }
 
     /**
@@ -229,9 +241,11 @@ public function getStatus(): ?SpanStatus
      *
      * @param SpanStatus|null $status The status
      */
-    public function setStatus(?SpanStatus $status): void
+    public function setStatus(?SpanStatus $status): self
     {
         $this->status = $status;
+
+        return $this;
     }
 
     /**
@@ -239,7 +253,7 @@ public function setStatus(?SpanStatus $status): void
      *
      * @param int $statusCode The HTTP status code
      */
-    public function setHttpStatus(int $statusCode): void
+    public function setHttpStatus(int $statusCode): self
     {
         $this->tags['http.status_code'] = (string) $statusCode;
 
@@ -248,6 +262,8 @@ public function setHttpStatus(int $statusCode): void
         if ($status !== SpanStatus::unknownError()) {
             $this->status = $status;
         }
+
+        return $this;
     }
 
     /**
@@ -261,13 +277,16 @@ public function getTags(): array
     }
 
     /**
-     * Sets a map of tags for this event.
+     * Sets a map of tags for this event. This method will merge the given tags with
+     * the existing ones.
      *
      * @param array<string, string> $tags The tags
      */
-    public function setTags(array $tags): void
+    public function setTags(array $tags): self
     {
         $this->tags = array_merge($this->tags, $tags);
+
+        return $this;
     }
 
     /**
@@ -291,9 +310,11 @@ public function getSampled(): ?bool
      *
      * @param bool $sampled Whether to sample or not this span
      */
-    public function setSampled(?bool $sampled): void
+    public function setSampled(?bool $sampled): self
     {
         $this->sampled = $sampled;
+
+        return $this;
     }
 
     /**
@@ -312,9 +333,11 @@ public function getData(): array
      *
      * @param array<string, mixed> $data The data
      */
-    public function setData(array $data): void
+    public function setData(array $data): self
     {
         $this->data = array_merge($this->data, $data);
+
+        return $this;
     }
 
     /**
@@ -398,7 +421,7 @@ public function startChild(SpanContext $context): self
         $span->transaction = $this->transaction;
         $span->spanRecorder = $this->spanRecorder;
 
-        if ($span->spanRecorder != null) {
+        if ($span->spanRecorder !== null) {
             $span->spanRecorder->add($span);
         }
 
@@ -418,9 +441,11 @@ public function getSpanRecorder(): ?SpanRecorder
     /**
      * Detaches the span recorder from this instance.
      */
-    public function detachSpanRecorder(): void
+    public function detachSpanRecorder(): self
     {
         $this->spanRecorder = null;
+
+        return $this;
     }
 
     /**
diff --git a/src/Tracing/SpanContext.php b/src/Tracing/SpanContext.php
index 59e80745b..a1afa3f77 100644
--- a/src/Tracing/SpanContext.php
+++ b/src/Tracing/SpanContext.php
@@ -66,9 +66,11 @@ public function getDescription(): ?string
         return $this->description;
     }
 
-    public function setDescription(?string $description): void
+    public function setDescription(?string $description): self
     {
         $this->description = $description;
+
+        return $this;
     }
 
     public function getOp(): ?string
@@ -76,9 +78,11 @@ public function getOp(): ?string
         return $this->op;
     }
 
-    public function setOp(?string $op): void
+    public function setOp(?string $op): self
     {
         $this->op = $op;
+
+        return $this;
     }
 
     public function getStatus(): ?SpanStatus
@@ -86,9 +90,11 @@ public function getStatus(): ?SpanStatus
         return $this->status;
     }
 
-    public function setStatus(?SpanStatus $status): void
+    public function setStatus(?SpanStatus $status): self
     {
         $this->status = $status;
+
+        return $this;
     }
 
     public function getParentSpanId(): ?SpanId
@@ -96,9 +102,11 @@ public function getParentSpanId(): ?SpanId
         return $this->parentSpanId;
     }
 
-    public function setParentSpanId(?SpanId $parentSpanId): void
+    public function setParentSpanId(?SpanId $parentSpanId): self
     {
         $this->parentSpanId = $parentSpanId;
+
+        return $this;
     }
 
     public function getSampled(): ?bool
@@ -106,9 +114,11 @@ public function getSampled(): ?bool
         return $this->sampled;
     }
 
-    public function setSampled(?bool $sampled): void
+    public function setSampled(?bool $sampled): self
     {
         $this->sampled = $sampled;
+
+        return $this;
     }
 
     public function getSpanId(): ?SpanId
@@ -116,9 +126,11 @@ public function getSpanId(): ?SpanId
         return $this->spanId;
     }
 
-    public function setSpanId(?SpanId $spanId): void
+    public function setSpanId(?SpanId $spanId): self
     {
         $this->spanId = $spanId;
+
+        return $this;
     }
 
     public function getTraceId(): ?TraceId
@@ -126,9 +138,11 @@ public function getTraceId(): ?TraceId
         return $this->traceId;
     }
 
-    public function setTraceId(?TraceId $traceId): void
+    public function setTraceId(?TraceId $traceId): self
     {
         $this->traceId = $traceId;
+
+        return $this;
     }
 
     /**
@@ -142,9 +156,11 @@ public function getTags(): array
     /**
      * @param array<string, string> $tags
      */
-    public function setTags(array $tags): void
+    public function setTags(array $tags): self
     {
         $this->tags = $tags;
+
+        return $this;
     }
 
     /**
@@ -158,9 +174,11 @@ public function getData(): array
     /**
      * @param array<string, mixed> $data
      */
-    public function setData(array $data): void
+    public function setData(array $data): self
     {
         $this->data = $data;
+
+        return $this;
     }
 
     public function getStartTimestamp(): ?float
@@ -168,9 +186,11 @@ public function getStartTimestamp(): ?float
         return $this->startTimestamp;
     }
 
-    public function setStartTimestamp(?float $startTimestamp): void
+    public function setStartTimestamp(?float $startTimestamp): self
     {
         $this->startTimestamp = $startTimestamp;
+
+        return $this;
     }
 
     public function getEndTimestamp(): ?float
@@ -178,8 +198,10 @@ public function getEndTimestamp(): ?float
         return $this->endTimestamp;
     }
 
-    public function setEndTimestamp(?float $endTimestamp): void
+    public function setEndTimestamp(?float $endTimestamp): self
     {
         $this->endTimestamp = $endTimestamp;
+
+        return $this;
     }
 }
diff --git a/src/Tracing/SpanRecorder.php b/src/Tracing/SpanRecorder.php
index 560763044..7f9f70b88 100644
--- a/src/Tracing/SpanRecorder.php
+++ b/src/Tracing/SpanRecorder.php
@@ -31,13 +31,15 @@ public function __construct(int $maxSpans = 1000)
      * Adds a span to the list of recorded spans or detaches the recorder if the
      * maximum number of spans to store has been reached.
      */
-    public function add(Span $span): void
+    public function add(Span $span): self
     {
         if (\count($this->spans) > $this->maxSpans) {
             $span->detachSpanRecorder();
         } else {
             $this->spans[] = $span;
         }
+
+        return $this;
     }
 
     /**
diff --git a/src/Tracing/Transaction.php b/src/Tracing/Transaction.php
index 4df809015..4c832d369 100644
--- a/src/Tracing/Transaction.php
+++ b/src/Tracing/Transaction.php
@@ -104,21 +104,18 @@ public function getDynamicSamplingContext(): DynamicSamplingContext
      *
      * @param int $maxSpans The maximum number of spans that can be recorded
      */
-    public function initSpanRecorder(int $maxSpans = 1000): void
+    public function initSpanRecorder(int $maxSpans = 1000): self
     {
         if ($this->spanRecorder === null) {
             $this->spanRecorder = new SpanRecorder($maxSpans);
         }
 
         $this->spanRecorder->add($this);
-    }
 
-    public function detachSpanRecorder(): void
-    {
-        $this->spanRecorder = null;
+        return $this;
     }
 
-    public function initProfiler(): void
+    public function initProfiler(): self
     {
         if ($this->profiler === null) {
             $client = $this->hub->getClient();
@@ -126,6 +123,8 @@ public function initProfiler(): void
 
             $this->profiler = new Profiler($options);
         }
+
+        return $this;
     }
 
     public function getProfiler(): ?Profiler
@@ -133,9 +132,11 @@ public function getProfiler(): ?Profiler
         return $this->profiler;
     }
 
-    public function detachProfiler(): void
+    public function detachProfiler(): self
     {
         $this->profiler = null;
+
+        return $this;
     }
 
     /**
diff --git a/src/Tracing/TransactionContext.php b/src/Tracing/TransactionContext.php
index 4f28037fb..e452de72a 100644
--- a/src/Tracing/TransactionContext.php
+++ b/src/Tracing/TransactionContext.php
@@ -55,9 +55,11 @@ public function getName(): string
      *
      * @param string $name The name
      */
-    public function setName(string $name): void
+    public function setName(string $name): self
     {
         $this->name = $name;
+
+        return $this;
     }
 
     /**
@@ -73,9 +75,11 @@ public function getParentSampled(): ?bool
      *
      * @param bool|null $parentSampled The decision
      */
-    public function setParentSampled(?bool $parentSampled): void
+    public function setParentSampled(?bool $parentSampled): self
     {
         $this->parentSampled = $parentSampled;
+
+        return $this;
     }
 
     /**
@@ -91,9 +95,11 @@ public function getMetadata(): TransactionMetadata
      *
      * @param TransactionMetadata $metadata The transaction metadata
      */
-    public function setMetadata(TransactionMetadata $metadata): void
+    public function setMetadata(TransactionMetadata $metadata): self
     {
         $this->metadata = $metadata;
+
+        return $this;
     }
 
     /**
@@ -101,9 +107,11 @@ public function setMetadata(TransactionMetadata $metadata): void
      *
      * @param TransactionSource $transactionSource The transaction source
      */
-    public function setSource(TransactionSource $transactionSource): void
+    public function setSource(TransactionSource $transactionSource): self
     {
         $this->metadata->setSource($transactionSource);
+
+        return $this;
     }
 
     /**
diff --git a/src/Tracing/TransactionMetadata.php b/src/Tracing/TransactionMetadata.php
index a217fc831..2a10923bc 100644
--- a/src/Tracing/TransactionMetadata.php
+++ b/src/Tracing/TransactionMetadata.php
@@ -49,9 +49,11 @@ public function getSamplingRate()
     /**
      * @param float|int|null $samplingRate
      */
-    public function setSamplingRate($samplingRate): void
+    public function setSamplingRate($samplingRate): self
     {
         $this->samplingRate = $samplingRate;
+
+        return $this;
     }
 
     public function getDynamicSamplingContext(): ?DynamicSamplingContext
@@ -59,9 +61,11 @@ public function getDynamicSamplingContext(): ?DynamicSamplingContext
         return $this->dynamicSamplingContext;
     }
 
-    public function setDynamicSamplingContext(?DynamicSamplingContext $dynamicSamplingContext): void
+    public function setDynamicSamplingContext(?DynamicSamplingContext $dynamicSamplingContext): self
     {
         $this->dynamicSamplingContext = $dynamicSamplingContext;
+
+        return $this;
     }
 
     public function getSource(): ?TransactionSource
@@ -69,8 +73,10 @@ public function getSource(): ?TransactionSource
         return $this->source;
     }
 
-    public function setSource(?TransactionSource $source): void
+    public function setSource(?TransactionSource $source): self
     {
         $this->source = $source;
+
+        return $this;
     }
 }
diff --git a/src/UserDataBag.php b/src/UserDataBag.php
index 6e7444be4..5e08dbb5b 100644
--- a/src/UserDataBag.php
+++ b/src/UserDataBag.php
@@ -130,13 +130,15 @@ public function getId()
      *
      * @param string|int|null $id The ID
      */
-    public function setId($id): void
+    public function setId($id): self
     {
         if ($id !== null && !\is_string($id) && !\is_int($id)) {
             throw new \UnexpectedValueException(sprintf('Expected an integer or string value for the $id argument. Got: "%s".', get_debug_type($id)));
         }
 
         $this->id = $id;
+
+        return $this;
     }
 
     /**
@@ -152,9 +154,11 @@ public function getUsername(): ?string
      *
      * @param string|null $username The username
      */
-    public function setUsername(?string $username): void
+    public function setUsername(?string $username): self
     {
         $this->username = $username;
+
+        return $this;
     }
 
     /**
@@ -170,9 +174,11 @@ public function getEmail(): ?string
      *
      * @param string|null $email The email
      */
-    public function setEmail(?string $email): void
+    public function setEmail(?string $email): self
     {
         $this->email = $email;
+
+        return $this;
     }
 
     /**
@@ -188,9 +194,11 @@ public function getSegment(): ?string
      *
      * @param string|null $segment The segment
      */
-    public function setSegment(?string $segment): void
+    public function setSegment(?string $segment): self
     {
         $this->segment = $segment;
+
+        return $this;
     }
 
     /**
@@ -206,13 +214,15 @@ public function getIpAddress(): ?string
      *
      * @param string|null $ipAddress The ip address
      */
-    public function setIpAddress(?string $ipAddress): void
+    public function setIpAddress(?string $ipAddress): self
     {
         if ($ipAddress !== null && filter_var($ipAddress, \FILTER_VALIDATE_IP) === false) {
             throw new \InvalidArgumentException(sprintf('The "%s" value is not a valid IP address.', $ipAddress));
         }
 
         $this->ipAddress = $ipAddress;
+
+        return $this;
     }
 
     /**
@@ -231,9 +241,11 @@ public function getMetadata(): array
      * @param string $name  The name of the field
      * @param mixed  $value The value
      */
-    public function setMetadata(string $name, $value): void
+    public function setMetadata(string $name, $value): self
     {
         $this->metadata[$name] = $value;
+
+        return $this;
     }
 
     /**
@@ -241,9 +253,11 @@ public function setMetadata(string $name, $value): void
      *
      * @param string $name The name of the field
      */
-    public function removeMetadata(string $name): void
+    public function removeMetadata(string $name): self
     {
         unset($this->metadata[$name]);
+
+        return $this;
     }
 
     /**
diff --git a/tests/FunctionsTest.php b/tests/FunctionsTest.php
index f343f941e..53218169d 100644
--- a/tests/FunctionsTest.php
+++ b/tests/FunctionsTest.php
@@ -343,9 +343,9 @@ public function testTraceparentWithTracingEnabled(): void
 
         SentrySdk::setCurrentHub($hub);
 
-        $spanContext = new SpanContext();
-        $spanContext->setTraceId(new TraceId('566e3688a61d4bc888951642d6f14a19'));
-        $spanContext->setSpanId(new SpanId('566e3688a61d4bc8'));
+        $spanContext = (new SpanContext())
+            ->setTraceId(new TraceId('566e3688a61d4bc888951642d6f14a19'))
+            ->setSpanId(new SpanId('566e3688a61d4bc8'));
 
         $span = new Span($spanContext);
 
diff --git a/tests/Tracing/SpanTest.php b/tests/Tracing/SpanTest.php
index 8244f18db..9c2387415 100644
--- a/tests/Tracing/SpanTest.php
+++ b/tests/Tracing/SpanTest.php
@@ -51,15 +51,15 @@ public function testStartChild(): void
         $spanContext2ParentSpanId = SpanId::generate();
         $spanContext2TraceId = TraceId::generate();
 
-        $spanContext1 = new SpanContext();
-        $spanContext1->setSampled(false);
-        $spanContext1->setSpanId(SpanId::generate());
-        $spanContext1->setTraceId(TraceId::generate());
-
-        $spanContext2 = new SpanContext();
-        $spanContext2->setSampled(true);
-        $spanContext2->setParentSpanId($spanContext2ParentSpanId);
-        $spanContext2->setTraceId($spanContext2TraceId);
+        $spanContext1 = (new SpanContext())
+            ->setSampled(false)
+            ->setSpanId(SpanId::generate())
+            ->setTraceId(TraceId::generate());
+
+        $spanContext2 = (new SpanContext())
+            ->setSampled(true)
+            ->setParentSpanId($spanContext2ParentSpanId)
+            ->setTraceId($spanContext2TraceId);
 
         $span1 = new Span($spanContext1);
         $span2 = $span1->startChild($spanContext2);
diff --git a/tests/Tracing/TransactionTest.php b/tests/Tracing/TransactionTest.php
index d66f198d7..34cfe2b0e 100644
--- a/tests/Tracing/TransactionTest.php
+++ b/tests/Tracing/TransactionTest.php
@@ -28,10 +28,10 @@ public function testFinish(): void
         ClockMock::withClockMock(1600640877);
 
         $expectedEventId = null;
-        $transactionContext = new TransactionContext();
-        $transactionContext->setTags(['ios_version' => '4.0']);
-        $transactionContext->setSampled(true);
-        $transactionContext->setStartTimestamp(1600640865);
+        $transactionContext = (new TransactionContext())
+            ->setTags(['ios_version' => '4.0'])
+            ->setSampled(true)
+            ->setStartTimestamp(1600640865);
 
         $client = $this->createMock(ClientInterface::class);
         $client->expects($this->once())