diff --git a/CHANGELOG.md b/CHANGELOG.md
index ba94d54..59c0a7f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,19 @@
 
 ## Release 2.12.0
 
-**TODO**
+* Update to eHN guidelines document for value sets, version 1.15:
+    1. New vaccine entry added: “Bimervax“, ID'd as “EU/1/22/1709”.
+       This new entry does not have an explicit version because it's an EMA-approved vaccine, and EMA has their own versioning system.
+    2. Addition of a marketing authorization holder or manufacturer “Hipra Human Health S.L.” for the new vaccine entry, ID'd as “ORG-100036914”.
+    3. Addition of a vaccine encoding instruction corresponding to the combination of sub items 1 and 2.
+
+  The [guidelines document v1.15 has been adopted and published](https://ec.europa.eu/health/sites/default/files/ehealth/docs/digital-green-value-sets_en.pdf) through the [eHealth network page on the EU DCC](https://ec.europa.eu/health/ehealth/covid-19_en).
+
+* Implement validation of valuesets against the EU DCC Schema.
+  * Implement a Git hook that runs that validation prior to committing.
+
+* Improve the documentation - [README](./README.md) an [VERSIONING](./VERSIONING.md) - in various ways.
+  * Fix not-yet-renamed links to repos which formerly were prefixed with "`ehn-dcc-`".
 
 
 ## Release 2.11.0
diff --git a/README.md b/README.md
index 5bbbfc4..1d6715e 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@ All of the file found in this repository should be considered for reference usag
 
 Release: 2.12.0
 
+
 ## Overview
 
 Here is an overview of the files available in this repository. The column "managed on" describes the place where the value-set is managed. In most cases that is in this GitHub repository. Those valuesets will usually be very close to the versions provided on the EU DGC Gateway. As they are managed in the GitHub they will always be the newest version, just bear in mind that the version provided by the EU DGC Gateway is always considered the **current** version.
diff --git a/annex-A/table.tsv b/annex-A/table.tsv
index af7bba0..b26a8ee 100644
--- a/annex-A/table.tsv
+++ b/annex-A/table.tsv
@@ -37,3 +37,4 @@ Soberana 02	Soberana-02	Finlay-Institute	28531000087107	Also known as FINLAY-FR-
 Soberana Plus	Soberana-Plus	Finlay-Institute	28531000087107	Also known as FINLAY-FR-1A.
 COVID-19 Vaccine Valneva	"EU/1/21/1624"	ORG-100036422	28531000087107	Previously known as VLA2001.
 VidPrevtyn Beta	EU/1/21/1580	ORG-100000788	28531000087107	Previously known as Vidprevtyn.
+Bimervax	EU/1/22/1709	ORG-100036914	28531000087107	Previously known as COVID-19 Vaccine HIPRA
diff --git a/vaccine-encoding-instructions.json b/vaccine-encoding-instructions.json
index 9a7349c..6a9803d 100644
--- a/vaccine-encoding-instructions.json
+++ b/vaccine-encoding-instructions.json
@@ -1,6 +1,6 @@
 {
   "valueSetId": "vaccines-covid-19-encoding-instructions",
-  "valueSetDate": "2023-01-26",
+  "valueSetDate": "2023-05-05",
   "valueSetValues": {
     "Comirnaty": {
       "vaccine-code": "EU/1/20/1528",
@@ -320,6 +320,14 @@
         "28531000087107"
       ],
       "note": "Previously known as Vidprevtyn."
+    },
+    "Bimervax": {
+      "vaccine-code": "EU/1/22/1709",
+      "vaccine-manufacturer": "ORG-100036914",
+      "sct-codes": [
+        "28531000087107"
+      ],
+      "note": "Previously known as COVID-19 Vaccine HIPRA"
     }
   }
 }
\ No newline at end of file
diff --git a/vaccine-mah-manf.json b/vaccine-mah-manf.json
index d4a4c42..252fb92 100644
--- a/vaccine-mah-manf.json
+++ b/vaccine-mah-manf.json
@@ -211,6 +211,13 @@
       "active": true,
       "system": "http://ec.europa.eu/temp/vaccinemanufacturer",
       "version": "1.10"
+    },
+    "ORG-100036914": {
+      "display": "Hipra Human Health S.L.",
+      "lang": "en",
+      "active": true,
+      "system": "https://spor.ema.europa.eu/v1/organisations",
+      "version": ""
     }
   }
 }
diff --git a/vaccine-medicinal-product.json b/vaccine-medicinal-product.json
index fa24ba5..3e82c97 100644
--- a/vaccine-medicinal-product.json
+++ b/vaccine-medicinal-product.json
@@ -267,6 +267,13 @@
       "active": true,
       "system": "https://ec.europa.eu/health/documents/community-register/html/",
       "version": ""
+    },
+    "EU/1/22/1709": {
+      "display": "Bimervax",
+      "lang": "en",
+      "active": true,
+      "system": "https://ec.europa.eu/health/documents/community-register/html/",
+      "version": ""
     }
   }
 }