[SCM] PostGIS branch stable-3.4 updated. 3.4.6-70-gd1196f604

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commit d1196f6043de1e608864739e915cc876a44b1ee5
Author: Darafei Praliaskouski <me at komzpa.net>
Date:   Tue Jul 7 15:08:00 2026 +0400

    upgrade: escape version regex literals
    
    Use explicit escape string syntax for the version parsing regular expressions emitted by create_upgrade.pl. This keeps downgrade checks quiet and parser-stable when standard_conforming_strings is off.
    
    Closes #6094 for PostGIS 3.4
    
    Closes https://github.com/postgis/postgis/pull/1158

diff --git a/NEWS b/NEWS
index 1f7a18ff1..b62241c5d 100644
--- a/NEWS
+++ b/NEWS
@@ -3,6 +3,8 @@ PostGIS 3.4.7
  
 * Bug Fixes *
 
+  - #6094, [upgrade] Avoid legacy string literal warnings in downgrade checks
+    with standard_conforming_strings off (Darafei Praliaskouski)
   - #6042, Skip downgrade checks when source extension libraries cannot
            be loaded in the current dependency environment
            (Darafei Praliaskouski)
diff --git a/utils/create_upgrade.pl b/utils/create_upgrade.pl
index a34183ee9..2a4b41bcf 100755
--- a/utils/create_upgrade.pl
+++ b/utils/create_upgrade.pl
@@ -752,11 +752,11 @@ BEGIN
     ) SELECT
       upgraded as scripts_upgraded,
       installed as scripts_installed,
-      pg_catalog.substring(upgraded, '([0-9]+)\.')::int * 100 +
-      pg_catalog.substring(upgraded, '[0-9]+\.([0-9]+)(\.|$)')::int
+      pg_catalog.substring(upgraded, E'([0-9]+)\\.')::int * 100 +
+      pg_catalog.substring(upgraded, E'[0-9]+\\.([0-9]+)(\\.|$)')::int
         as version_to_num,
-      pg_catalog.substring(installed, '([0-9]+)\.')::int * 100 +
-      pg_catalog.substring(installed, '[0-9]+\.([0-9]+)(\.|$)')::int
+      pg_catalog.substring(installed, E'([0-9]+)\\.')::int * 100 +
+      pg_catalog.substring(installed, E'[0-9]+\\.([0-9]+)(\\.|$)')::int
         as version_from_num,
       installed ~ 'dev|alpha|beta'
         as version_from_isdev

-----------------------------------------------------------------------

Summary of changes:
 NEWS                    | 2 ++
 utils/create_upgrade.pl | 8 ++++----
 2 files changed, 6 insertions(+), 4 deletions(-)


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