diff --git a/CMakeLists.txt b/CMakeLists.txt
index 789fc468..ff21fb5e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -438,7 +438,6 @@ add_mdbx_option(MDBX_BUILD_TOOLS "Build MDBX tools (mdbx_chk/stat/dump/load/copy
 CMAKE_DEPENDENT_OPTION(MDBX_INSTALL_MANPAGES "Install man-pages for MDBX tools (mdbx_chk/stat/dump/load/copy)" ON MDBX_BUILD_TOOLS OFF)
 add_mdbx_option(MDBX_TXN_CHECKOWNER "Checking transaction matches the calling thread inside libmdbx's API" ON)
 add_mdbx_option(MDBX_ENV_CHECKPID "Paranoid checking PID inside libmdbx's API" AUTO)
-add_mdbx_option(MDBX_HUGE_TRANSACTIONS "Support for huge write-transactions" OFF)
 mark_as_advanced(MDBX_ENV_CHECKPID)
 if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
   add_mdbx_option(MDBX_DISABLE_GNU_SOURCE "Don't use GNU/Linux libc extensions" OFF)
diff --git a/ChangeLog.md b/ChangeLog.md
index 90cd7f04..954988fc 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -11,6 +11,12 @@ ChangeLog
  - Finalize C++ API (few typos and trivia bugs are still likely for now).
  - Packages for ROSA Linux, ALT Linux, Fedora/RHEL, Debian/Ubuntu.
 
+
+Removed options and features:
+
+  - Drop `MDBX_HUGE_TRANSACTIONS` build-option (now no longer required).
+
+
 ## v0.9.2 scheduled at 2020-11-27
 
 Acknowledgements:
diff --git a/src/config.h.in b/src/config.h.in
index 5048d4e0..4fdddfd9 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -12,7 +12,6 @@
 #cmakedefine MDBX_FORCE_ASSERTIONS
 
 /* Common */
-#cmakedefine01 MDBX_HUGE_TRANSACTIONS
 #cmakedefine01 MDBX_TXN_CHECKOWNER
 #cmakedefine MDBX_ENV_CHECKPID_AUTO
 #ifndef MDBX_ENV_CHECKPID_AUTO
diff --git a/src/core.c b/src/core.c
index b3dad606..a6f89cfa 100644
--- a/src/core.c
+++ b/src/core.c
@@ -20101,9 +20101,6 @@ __dll_export
 #else
     #error "FIXME: Unsupported byte order"
 #endif /* __BYTE_ORDER__ */
-#if MDBX_HUGE_TRANSACTIONS
-    " MDBX_HUGE_TRANSACTIONS=YES"
-#endif /* MDBX_HUGE_TRANSACTIONS */
     " MDBX_ENV_CHECKPID=" MDBX_ENV_CHECKPID_CONFIG
     " MDBX_TXN_CHECKOWNER=" MDBX_TXN_CHECKOWNER_CONFIG
     " MDBX_64BIT_ATOMIC=" MDBX_64BIT_ATOMIC_CONFIG
diff --git a/src/options.h b/src/options.h
index 6ca8a1e7..79342917 100644
--- a/src/options.h
+++ b/src/options.h
@@ -41,11 +41,6 @@
 
 #endif /* DOXYGEN */
 
-/** Enables support for huge write-transactions */
-#ifndef MDBX_HUGE_TRANSACTIONS
-#define MDBX_HUGE_TRANSACTIONS 0
-#endif /* MDBX_HUGE_TRANSACTIONS */
-
 /** Using fcntl(F_FULLFSYNC) with 5-10 times slowdown */
 #define MDBX_OSX_WANNA_DURABILITY 0
 /** Using fsync() with chance of data lost on power failure */