1 files changed, 13 insertions, 3 deletions
diff --git a/docs/env_variables.md b/docs/env_variables.md
index cd002145..21bf9fad 100644
--- a/docs/env_variables.md
+++ b/docs/env_variables.md
@@ -111,10 +111,15 @@ Then there are a few specific features that are only available in llvm_mode:
     instrumentation which is 100% collision free (collisions are a big issue
     in afl and afl-like instrumentations). This is performed by using
     afl-clang-lto/afl-clang-lto++ instead of afl-clang-fast, but is only
-    built if LLVM 9 or newer is used.
+    built if LLVM 11 or newer is used.
 
-    None of these options are necessary to be used and are rather for manual
-    use (which only ever the author of this LTO implementation will use ;-)
+   - AFL_LLVM_LTO_AUTODICTIONARY will generate a dictionary in the target
+     binary based on string compare and memory compare functions.
+     afl-fuzz will automatically get these transmitted when starting to
+     fuzz.
+
+    None of the following options are necessary to be used and are rather for
+    manual use (which only ever the author of this LTO implementation will use).
     These are used if several seperated instrumentation are performed which
     are then later combined.
 
@@ -238,6 +243,11 @@ checks or alter some of the more exotic semantics of the tool:
     normally indicated by the cycle counter in the UI turning green. May be
     convenient for some types of automated jobs.
 
+  - AFL_MAP_SIZE sets the size of the shared map that afl-fuzz, afl-showmap,
+    afl-tmin and afl-analyze create to gather instrumentation data from
+    the target. This must be equal or larger than the size the target was
+    compiled with.
+
   - Setting AFL_NO_AFFINITY disables attempts to bind to a specific CPU core
     on Linux systems. This slows things down, but lets you run more instances
     of afl-fuzz than would be prudent (if you really want to).