diff --git a/etc/build/config.props b/etc/build/config.props
index 9ed063c..17152af 100644
--- a/etc/build/config.props
+++ b/etc/build/config.props
@@ -5,5 +5,5 @@
 //   18 Mar 2019  Brian Frank  Creation
 //
 
-buildVersion=3.9.9
+buildVersion=3.9.10
 
diff --git a/src/docHaystack/doc/ChangeLog.fandoc b/src/docHaystack/doc/ChangeLog.fandoc
index 779d3b5..39f9022 100644
--- a/src/docHaystack/doc/ChangeLog.fandoc
+++ b/src/docHaystack/doc/ChangeLog.fandoc
@@ -6,7 +6,7 @@
 ** license:    Licensed under the Academic Free License version 3.0
 **************************************************************************
 
-**Version 3.9.10 (working)**
+**Version 3.9.10 (23 Apr 2021)**
 - Rename weatherRef to weatherStationRef for consistency
 - Annotate equip which typically uses electricity as elec-input
 - Rename docSection to docAssociations
diff --git a/src/ph/lib/lib.trio b/src/ph/lib/lib.trio
index 2fa7438..90b6e2b 100644
--- a/src/ph/lib/lib.trio
+++ b/src/ph/lib/lib.trio
@@ -9,6 +9,6 @@
 --------------------------------------------------------------------------
 def: ^lib:ph
 doc: "Project Haystack core definitions"
-version: "3.9.7"
+version: "3.9.10"
 baseUri: `https://project-haystack.org/def/ph/`
------------------------------------------------------------------------
\ No newline at end of file
+----------------------------------------------------------------------
\ No newline at end of file
diff --git a/src/phIct/lib/lib.trio b/src/phIct/lib/lib.trio
index 97e2d5a..334bb8a 100644
--- a/src/phIct/lib/lib.trio
+++ b/src/phIct/lib/lib.trio
@@ -8,7 +8,7 @@
 
 --------------------------------------------------------------------------
 def: ^lib:phIct
-version: "3.9.7"
+version: "3.9.10"
 baseUri: `https://project-haystack.org/def/phIct/`
 depends: [^lib:ph, ^lib:phIoT]
 wikipedia: `https://en.wikipedia.org/wiki/Information_and_communications_technology`
@@ -16,4 +16,4 @@ doc:
   Project Haystack definitions for Information and Communications Technology.
   This includes microprocessor based hardware, software, and networking
   technologies.
-----------------------------------------------------------------------
\ No newline at end of file
+---------------------------------------------------------------------
\ No newline at end of file
diff --git a/src/phIoT/lib/lib.trio b/src/phIoT/lib/lib.trio
index 4ae92ce..be3a7df 100644
--- a/src/phIoT/lib/lib.trio
+++ b/src/phIoT/lib/lib.trio
@@ -8,9 +8,9 @@
 
 --------------------------------------------------------------------------
 def: ^lib:phIoT
-version: "3.9.7"
+version: "3.9.10"
 baseUri: `https://project-haystack.org/def/phIoT/`
 wikipedia: `https://en.wikipedia.org/wiki/Internet_of_things`
 depends: [^lib:ph, ^lib:phScience]
 doc: "Project Haystack definitions for Internet of Things"
-----------------------------------------------------------------------
\ No newline at end of file
+---------------------------------------------------------------------
\ No newline at end of file
diff --git a/src/phScience/lib/lib.trio b/src/phScience/lib/lib.trio
index 9db5ad5..ed99079 100644
--- a/src/phScience/lib/lib.trio
+++ b/src/phScience/lib/lib.trio
@@ -9,7 +9,7 @@
 --------------------------------------------------------------------------
 def: ^lib:phScience
 doc: "Project Haystack scientific definitions"
-version: "3.9.7"
+version: "3.9.10"
 baseUri: `https://project-haystack.org/def/phScience/`
 depends: [^lib:ph]
-----------------------------------------------------------------------
\ No newline at end of file
+---------------------------------------------------------------------
\ No newline at end of file