Author: lyalyakin
Date: Fri Aug  7 11:17:47 2026
New Revision: 1936959

Log:
Cut the BDB guidance to a minimum in INSTALL.

* INSTALL
  (I.B: Dependency Overview): Reword the Berkeley DB section. Mark it as
   scheduled for future removal. Note that CMake-based build doesn't support
   BDB.
  (I.C.8): Remove the Berkeley DB section entirely. Renumber other sections
  affected by this change.

Modified:
   subversion/trunk/INSTALL

Modified: subversion/trunk/INSTALL
==============================================================================
--- subversion/trunk/INSTALL    Fri Aug  7 11:13:00 2026        (r1936958)
+++ subversion/trunk/INSTALL    Fri Aug  7 11:17:47 2026        (r1936959)
@@ -115,17 +115,12 @@ I.    INTRODUCTION
          repositories over http:// and https:// URLs.  Apache Serf uses OpenSSL
          for the encrypted https:// communication.
 
-      * Berkeley DB (DEPRECATED and OPTIONAL for client and server)
+      * Berkeley DB  (DEPRECATED, TO BE REMOVED IN THE FUTURE)
 
-         When you create a repository, you have the option of
-         specifying a storage 'back-end' implementation.  Currently,
-         there are two options.  The newer and recommended one, known
-         as FSFS, does not require Berkeley DB.  FSFS stores data in a
-         flat filesystem.  The older implementation, known as BDB, has
-         been deprecated and is not recommended for new repositories,
-         but is still available.  BDB stores data in a Berkeley DB
-         database.  This back-end will only be available if the BDB
-         libraries are discovered at compile time.
+         Needed only for the deprecated BDB repository backend.  Support for
+         BDB is planned to be removed completely in the future.
+
+         The CMake build system does not support building with BDB.
 
       * libsasl (OPTIONAL for client and server)
 
@@ -342,51 +337,7 @@ I.    INTRODUCTION
       system or directly from https://serf.apache.org/.
 
 
-
-      8.  Berkeley DB 4.X  (DEPRECATED and OPTIONAL)
-
-      You need the Berkeley DB libraries only if you are building a
-      Subversion server that supports the older BDB repository storage
-      back-end, or a Subversion client that can access local BDB
-      repositories via the file:// URI scheme.
-
-      The BDB back-end has been deprecated and is not recommended for
-      new repositories.  BDB may be removed in Subversion 2.0.  We
-      recommend the newer FSFS back-end for all new repositories.
-      FSFS does not require the Berkeley DB libraries.
-
-      If in doubt, the 'svnadmin info' command, added in Subversion
-      1.9, can identify whether an existing repository uses BDB or
-      FSFS.
-
-      The current recommended version of Berkeley DB is 4.4.20 or
-      newer, which brings auto-recovery functionality to the Berkeley
-      DB database environment.
-
-      If you must use an older version of Berkeley DB, we *strongly*
-      recommend using 4.3 or 4.2 over the 4.1 or 4.0 versions.  Not
-      only are these significantly faster and more stable, but they
-      also enable Subversion repositories to automatically clean up
-      database journal files to save disk space.
-
-      You'll need Berkeley DB installed on your system.  You can
-      get it from:
-
-      
http://www.oracle.com/technetwork/database/database-technologies/berkeleydb/overview/index.html
-
-      If you have Berkeley DB installed in a place not searched by default
-      for includes and libraries, add something like this:
-
-          
--with-berkeley-db=db.h:/usr/local/include/db4.7:/usr/local/lib/db4.7:db-4.7
-
-      to your `configure' switches, and the build process will use the
-      Berkeley DB header and library in the named directories.  You may
-      need to use a different path, of course.  Note that in order for
-      the detection to succeed, the dynamic linker must be able to find
-      the libraries at configure time.
-
-
-      9.  Cyrus SASL library (OPTIONAL)
+      8.  Cyrus SASL library (OPTIONAL)
 
       If the Simple Authentication and Security Layer (SASL) library
       is detected on your system, then the Subversion client and
@@ -397,7 +348,7 @@ I.    INTRODUCTION
          http://freshmeat.net/projects/cyrussasl/
 
 
-      10. Apache Web Server 2.2.X or newer  (OPTIONAL)
+      9. Apache Web Server 2.2.X or newer  (OPTIONAL)
 
           (https://httpd.apache.org/download.cgi)
 
@@ -410,7 +361,7 @@ I.    INTRODUCTION
       is done: See section III for details.
 
 
-      11. Python 3.x or newer (https://www.python.org/)  (OPTIONAL)
+      10. Python 3.x or newer (https://www.python.org/)  (OPTIONAL)
 
       Subversion does not require Python for its basic operation.
       However, Python is required for building and testing Subversion
@@ -462,33 +413,33 @@ I.    INTRODUCTION
       section II.B for more about autogen.sh.
 
 
-      12. Perl 5.8 or newer (Windows only)  (OPTIONAL)
+      11. Perl 5.8 or newer (Windows only)  (OPTIONAL)
 
       To build Subversion under any of the MS Windows platforms, you
       will also need Perl 5.8 or newer to run apr-util's w32locatedb.pl
       script.
 
 
-      13. pkg-config  (Unix only, OPTIONAL)
+      12. pkg-config  (Unix only, OPTIONAL)
 
       Subversion uses pkg-config to find appropriate options used
       at build time.
 
 
-      14. D-Bus  (Unix only, OPTIONAL)
+      13. D-Bus  (Unix only, OPTIONAL)
 
       D-Bus is a message bus system. D-Bus is required for support for KWallet
       and GNOME Keyring. pkg-config is needed to find D-Bus headers and 
library.
 
 
-      15. Qt 5 or Qt 4  (Unix only, OPTIONAL)
+      14. Qt 5 or Qt 4  (Unix only, OPTIONAL)
 
       Qt is a cross-platform application framework. QtCore, QtDBus and QtGui
       modules are required for support for KWallet. pkg-config is needed
       to find Qt headers and libraries.
 
 
-      16. KDE 5 Framework libraries or KDELibs 4  (Unix only, OPTIONAL)
+      15. KDE 5 Framework libraries or KDELibs 4  (Unix only, OPTIONAL)
 
       Subversion contains optional support for storing passwords in KWallet.
       Subversion will look for KF5Wallet, KF5CoreAddons, KF5I18n APIs by 
default,
@@ -504,13 +455,13 @@ I.    INTRODUCTION
           --with-kwallet=/path/to/KDE/prefix
 
 
-      17. GLib 2  (Unix only, OPTIONAL)
+      16. GLib 2  (Unix only, OPTIONAL)
 
       GLib is a general-purpose utility library. GLib is required for support
       for GNOME Keyring. pkg-config is needed to find GLib headers and library.
 
 
-      18. GNOME Keyring  (Unix only, OPTIONAL)
+      17. GNOME Keyring  (Unix only, OPTIONAL)
 
       Subversion contains optional support for storing passwords in GNOME 
Keyring.
       pkg-config is needed to find GNOME Keyring headers and library. D-Bus and
@@ -518,7 +469,7 @@ I.    INTRODUCTION
       then pass the '--with-gnome-keyring' option to `configure`.
 
 
-      19. libmagic (OPTIONAL)
+      18. libmagic (OPTIONAL)
 
       Subversion's configure script attempts to find libmagic automatically.
       If it is installed in a non-standard location, then use:
@@ -540,7 +491,7 @@ I.    INTRODUCTION
         --with-libmagic
 
 
-      20. LZ4 (REQUIRED)
+      19. LZ4 (REQUIRED)
 
       Subversion uses LZ4 compression library version r129 or above. Configure
       will attempt to locate the system library by default using pkg-config
@@ -554,7 +505,7 @@ I.    INTRODUCTION
         --with-lz4=internal
 
 
-      21. py3c (OPTIONAL)
+      20. py3c (OPTIONAL)
 
       Subversion uses the Python 3 Compatibility Layer for C
       Extensions (py3c) library when building the Python language

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