diff --git a/ReleaseNotes.md b/ReleaseNotes.md
index fef4de59b..bf8f97f3a 100644
--- a/ReleaseNotes.md
+++ b/ReleaseNotes.md
@@ -11,14 +11,18 @@
  ```
 # coda-oss Release Notes
 
-## [Release 2023-??-??](https://github.com/mdaus/coda-oss/releases/tag/2023-??-??)
+## [Release 2023-06-05](https://github.com/mdaus/coda-oss/releases/tag/2023-06-05)
 * *zlib* updated to [1.2.13](https://github.com/madler/zlib/releases/tag/v1.2.13).
 * new `mem::ComplexView` class to make it easier to process complex data stored in parallel. 
 * adjust compiler flags for clean *CMake* builds.
 * wrap common "file open" routines (e.g., `fopen()`) to support `sys::expandEnvironmentVariables()`.
 * add header-only [HighFive](https://github.com/BlueBrain/HighFive) HDF5-wrapper library.
+* Added a handful of [HighFive](https://github.com/BlueBrain/HighFive) utility routines.
+* `mt::transform_async()` removed, it doesn't match C++17 techniques.'
 * Revamp `sys::byteSwap()` for improved type-safety and
   [better performance](https://devblogs.microsoft.com/cppblog/a-tour-of-4-msvc-backend-improvements/).
+ * Added case-insensitive string comparison utilties: `str::eq()` and `str::ne()`;
+   `xml::lite::Uri`s compare case-insensitive.
 
 ## [Release 2022-12-14](https://github.com/mdaus/coda-oss/releases/tag/2022-12-14)
 * removed remaining vestiges of `std::auto_ptr`, provide `mem::AutoPtr` for the tiny handful of
diff --git a/modules/c++/config/include/config/Version.h b/modules/c++/config/include/config/Version.h
index bcb4979bd..69944fc0b 100644
--- a/modules/c++/config/include/config/Version.h
+++ b/modules/c++/config/include/config/Version.h
@@ -42,12 +42,12 @@ static_assert(CODA_OSS_MAKE_VERSION_MMPB(9999, 9999, 9999, 9999) <= UINT64_MAX,
 
 // Do this ala C++ ... we don't currently have major/minor/patch
 //#define CODA_OSS_VERSION_ 20210910L // c.f. __cplusplus
-#define CODA_OSS_VERSION_ 2022 ## 0012 ## 0014 ## 0000 ## L
+#define CODA_OSS_VERSION_ 2023 ## 0006 ## 0005 ## 0000 ## L
 
 // Use the same macros other projects might want to use; overkill for us.
-#define CODA_OSS_VERSION_MAJOR	2022
-#define CODA_OSS_VERSION_MINOR	12
-#define CODA_OSS_VERSION_PATCH	14
+#define CODA_OSS_VERSION_MAJOR	2023
+#define CODA_OSS_VERSION_MINOR	6
+#define CODA_OSS_VERSION_PATCH	5
 #define CODA_OSS_VERSION_BUILD	0
 #define CODA_OSS_VERSION CODA_OSS_MAKE_VERSION_MMPB(CODA_OSS_VERSION_MAJOR, CODA_OSS_VERSION_MINOR, CODA_OSS_VERSION_PATCH, CODA_OSS_VERSION_BUILD)