Update version to 3.1.7

Author: chad-earthscope

ChangeLog

@@ -2,7 +2,10 @@
 	- Add ms_nstime2timestr_n() with string size limit, deprecate ms_nstime2timestr().
 	- With ms_nstime2timestr_n() print "ERROR" for NSTERROR and "UNSET" for NSTUNSET.
 	- Avoid fatal errors when v2 record blockettes contain invalid time stamps.
-	- Limit float point values in extra headers to single precision.
+  When SEED "btime" values are encountered they are now set to NSTERROR and
+	serialized in extra headers as "ERROR".
+	- Limit float point values in extra headers to single precision to avoid
+  unrealistically high precision values in the output
 	- Update yyjson to v0.12.0
 
 2025.227:

libmseed.h

@@ -28,8 +28,8 @@
 extern "C" {
 #endif
 
-#define LIBMSEED_VERSION "3.1.6"     //!< Library version
-#define LIBMSEED_RELEASE "2025.207"  //!< Library release date
+#define LIBMSEED_VERSION "3.1.7"     //!< Library version
+#define LIBMSEED_RELEASE "2025.234"  //!< Library release date
 
 /** @defgroup io-functions File and URL I/O */
 /** @defgroup miniseed-record Record Handling */