diff --git a/CHANGES.md b/CHANGES.md
index a76e3d9909..f92e42fba2 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,18 +1,28 @@
-Release 2.5.12.0 (June 1?, 2024) -- compared to 2.5.11.0
+Release 2.5.12.0 (June 1, 2024) -- compared to 2.5.11.0
 -------------------------------------------------------
-
+- *exr*: Add IOProxy support for EXR multipart output [#4263](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4263) [#4264](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4264) (by jreichel-nvidia)
+- *pnm*: Improvements to pnm plugin: support for uint16 and 32-float, "pnm:bigendian" and "pnm:pfmflip" controls for output. [#4253](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4253) (by Vlad (Kuzmin) Erium)
+- *ImageBuf*: Improve behavior of IB::nsubimages and other related fixes [#4228](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4228)
+- *simd.h*: Fix longstanding problem with 16-wide bitcast for 8-wide HW [#4268](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4268)
+- *strutil.h*: Add Strutil::eval_as_bool [#4250](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4250)
+- *tests*: Add new heif test output [#4262](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4262)
+- *tests*: Fix windows quoting for test [#4271](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4271)
+- *build*: More warning elimination for clang18 [#4257](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4257)
+- *build*: Add appropriate compiler defines and flags for SIMD with MSVC [#4266](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4266) (by Jesse Yurkovich)
+- *build*: Gcc-14 support, testing, CI [#4270](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4270)
+- *docs*: Fix stray references to the old repo home [#4255](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4255)
 
 
 Release 2.5.11.0 (May 1, 2024) -- compared to 2.5.10.0
 -------------------------------------------------------
-  - *dds*: DDS support more DXGI formats [#4220](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4220) (by alexguirre)
-  - *psd*: Add support for 16- and 32-bit Photoshop file reads [#4208](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4208) (by EmilDohne)
-  - *fix(fmt.h)*: Fix build break from recent fmt change [#4227](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4227)
-  - *fix(openexr)*: Fix out-of-bounds reads when using OpenEXR decreasingY lineOrder. [#4215](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4215) (by Aaron Colwell)
-  - *fix*: Don't use (DY)LD_LIBRARY_PATH as plugin search paths [#4245](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4245) (by Brecht Van Lommel)
-  - *fix*: Fix crash when no default fonts are found [#4249](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4249)
-  - *build*: Disable clang18 warnings about deprecated unicode conversion [#4246](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4246)
-  - *security*: Better documentation of past CVE fixes in SECURITY.md [#4238](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4238)
+- *dds*: DDS support more DXGI formats [#4220](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4220) (by alexguirre)
+- *psd*: Add support for 16- and 32-bit Photoshop file reads [#4208](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4208) (by EmilDohne)
+- *fix(fmt.h)*: Fix build break from recent fmt change [#4227](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4227)
+- *fix(openexr)*: Fix out-of-bounds reads when using OpenEXR decreasingY lineOrder. [#4215](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4215) (by Aaron Colwell)
+- *fix*: Don't use (DY)LD_LIBRARY_PATH as plugin search paths [#4245](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4245) (by Brecht Van Lommel)
+- *fix*: Fix crash when no default fonts are found [#4249](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4249)
+- *build*: Disable clang18 warnings about deprecated unicode conversion [#4246](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4246)
+- *security*: Better documentation of past CVE fixes in SECURITY.md [#4238](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4238)
 
 
 Release 2.5.10.1 (Apr 1, 2024) -- compared to 2.5.9.0