Index: .github/workflows/build.yml
===================================================================
diff -u -r97cb6320616dbfe0418a50b0701f7d5489df6c5b -rcb2f6683e20ac4db20a8350a7dfe0c6dfb3e8716
--- .github/workflows/build.yml	(.../build.yml)	(revision 97cb6320616dbfe0418a50b0701f7d5489df6c5b)
+++ .github/workflows/build.yml	(.../build.yml)	(revision cb2f6683e20ac4db20a8350a7dfe0c6dfb3e8716)
@@ -67,23 +67,23 @@
             experimental: [false]
           - os: macos-latest
             compiler: gcc-11
-            tcltag: core-8-6-13
+            tcltag: core-8-6-14
             experimental: [false]
           - os: macos-latest
             compiler: gcc-11
-            tcltag: core-8-7-a5
+            tcltag: core-9-0-b1
             experimental: [false]
           - os: ubuntu-latest
             compiler: gcc-10
             tcltag: core-8-5-19
             experimental: [false]
           - os: ubuntu-latest
             compiler: gcc-10
-            tcltag: core-8-6-13
+            tcltag: core-8-6-14
             experimental: [false]
           - os: ubuntu-latest
             compiler: gcc-10
-            tcltag: core-8-7-a5
+            tcltag: core-9-0-b1
             experimental: [false]
     defaults:
       run:
Index: appveyor.yml
===================================================================
diff -u -r832ca305abaac4976959e08312418f8325b540f3 -rcb2f6683e20ac4db20a8350a7dfe0c6dfb3e8716
--- appveyor.yml	(.../appveyor.yml)	(revision 832ca305abaac4976959e08312418f8325b540f3)
+++ appveyor.yml	(.../appveyor.yml)	(revision cb2f6683e20ac4db20a8350a7dfe0c6dfb3e8716)
@@ -21,9 +21,9 @@
     TOOLCHAIN: autoconf-tea
   - TCLTAG: core-8-6-branch
     TOOLCHAIN: nmake-tea
-  - TCLTAG: core-8-6-13
+  - TCLTAG: core-8-6-14
     TOOLCHAIN: autoconf-tea
-  - TCLTAG: core-8-6-13
+  - TCLTAG: core-8-6-14
     TOOLCHAIN: nmake-tea
   - TCLTAG: core-8-5-branch
     TOOLCHAIN: autoconf-tea
@@ -33,9 +33,9 @@
     TOOLCHAIN: autoconf-tea
   #  - TCLTAG: core-8-5-19
   #    TOOLCHAIN: nmake-tea	
-  - TCLTAG: core-8-7-a5
+  - TCLTAG: core-9-0-b1
     TOOLCHAIN: autoconf-tea
-  - TCLTAG: core-8-7-a5
+  - TCLTAG: core-9-0-b1
     TOOLCHAIN: nmake-tea
   - TCLTAG: core-8-branch
     TOOLCHAIN: autoconf-tea
@@ -45,16 +45,12 @@
     TOOLCHAIN: autoconf-tea
   - TCLTAG: main
     TOOLCHAIN: nmake-tea
-  - TCLTAG: core-9-0-a3
-    TOOLCHAIN: autoconf-tea
-  - TCLTAG: core-9-0-a3
-    TOOLCHAIN: nmake-tea
 matrix:
   allow_failures:
   - TCLTAG: core-8-6-branch
   - TCLTAG: core-8-5-branch
   - TCLTAG: core-8-branch
-  - TCLTAG: core-9-0-a3
+  - TCLTAG: core-9-0-b1
   - TCLTAG: main
   fast_finish: true