diff --git a/README.md b/README.md
index dd32e28ee3a08587c3dc51e98f1e5733fc717fef..14a42b7e42cd95a4650822ca7cbf3fbd718496e2 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,9 @@
 
   ![Travis State](https://api.travis-ci.com/AFLplusplus/AFLplusplus.svg?branch=stable)
 
-  Release Version: [2.65c](https://github.com/AFLplusplus/AFLplusplus/releases)
+  Release Version: [2.66c](https://github.com/AFLplusplus/AFLplusplus/releases)
 
-  Github Version: 2.65d
+  Github Version: 2.66d
 
   includes all necessary/interesting changes from Google's afl 2.56b
 
diff --git a/TODO.md b/TODO.md
index 55b886e450d3b487291b57038a27174462763ede..8085bc07957f948131a77f392a5f9aacb283c8e1 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,6 +1,6 @@
 # TODO list for AFL++
 
-## Roadmap 2.65+
+## Roadmap 2.66+
 
  - AFL_MAP_SIZE for qemu_mode and unicorn_mode
  - namespace for targets? e.g. network
diff --git a/docs/Changelog.md b/docs/Changelog.md
index 6718ecde440ed487f2f9d704b344f35d49e15a74..e6e0116a69d7c18fe6c44f38ab44f91f1f914a7d 100644
--- a/docs/Changelog.md
+++ b/docs/Changelog.md
@@ -9,7 +9,7 @@ Want to stay in the loop on major new features? Join our mailing list by
 sending a mail to <afl-users+subscribe@googlegroups.com>.
 
 
-### Version ++2.65d (dev)
+### Version ++2.66c (release)
   - renamed the main branch on Github to "stable"
   - renamed master/slave to main/secondary
   - renamed blacklist/whitelist to ignorelist/instrumentlist ->
@@ -34,18 +34,18 @@ sending a mail to <afl-users+subscribe@googlegroups.com>.
     - the default instrumentation is now PCGUARD if the llvm version is >= 7,
       as it is faster and provides better coverage. The original afl
       instrumentation can be set via AFL_LLVM_INSTRUMENT=AFL. This is
-      automatically done when the WHITELIST feature is used. 
+      automatically done when the instrument_file list feature is used. 
     - PCGUARD mode is now even better because we made it collision free - plus
       it has a fixed map size, so it is also faster! :)
     - some targets want a ld variant for LD that is not gcc/clang but ld,
       added afl-ld-lto to solve this
     - lowered minimum required llvm version to 3.4 (except LLVMInsTrim, which
       needs 3.8.0)
-    - WHITELIST feature now supports wildcards (thanks to sirmc)
+    - instrument_file list feature now supports wildcards (thanks to sirmc)
     - small change to cmplog to make it work with current llvm 11-dev
     - added AFL_LLVM_LAF_ALL, sets all laf-intel settings
     - LTO instrument_files functionality rewritten, now main, _init etc functions
-      need not to be instrument_filesed anymore
+      need not to be listed anymore
     - fixed crash in compare-transform-pass when strcasecmp/strncasecmp was
       tried to be instrumented with LTO
     - fixed crash in cmplog with LTO
diff --git a/include/config.h b/include/config.h
index 5ee933891d5d7fab810cdd9c565a1f0a5ea2eca5..e8f52f452adc222a13d6fbf0473dfe9d927a71a8 100644
--- a/include/config.h
+++ b/include/config.h
@@ -28,7 +28,7 @@
 /* Version string: */
 
 // c = release, d = volatile github dev, e = experimental branch
-#define VERSION "++2.65d"
+#define VERSION "++2.66c"
 
 /******************************************************
  *                                                    *
diff --git a/llvm_mode/README.instrument_file.md b/llvm_mode/README.instrument_file.md
index 347bd3c645e3e8205497eb47cb97f664629cf62b..29c40eecbf9418aa86c9f3443234b7686176a924 100644
--- a/llvm_mode/README.instrument_file.md
+++ b/llvm_mode/README.instrument_file.md
@@ -54,7 +54,7 @@ feature_a/a1.cpp
 feature_a/a2.cpp
 ```
 
-However if the the instrument file list file contains only this, it works as well:
+However if the instrument file list file contains only this, it works as well:
 
 ```
 a1.cpp