maint: post-release administrivia

* NEWS: Add header line for next release.
* .prev-version: Record previous version.
* cfg.mk (old_NEWS_hash): Auto-update.

3 files changed, 5 insertions, 2 deletions

diff --git a/.prev-version b/.prev-version
index 5a958026..d70c8f8d 100644
--- a/.prev-version
+++ b/.prev-version
@@ -1 +1 @@
-3.5
+3.6
diff --git a/NEWS b/NEWS
index 0a5bd243..a45ced19 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,8 @@
 GNU grep NEWS                                    -*- outline -*-
 
+* Noteworthy changes in release ?.? (????-??-??) [?]
+
+
 * Noteworthy changes in release 3.6 (2020-11-08) [stable]
 
 ** Changes in behavior
diff --git a/cfg.mk b/cfg.mk
index 5a3cea85..57b2d721 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -65,7 +65,7 @@ export VERBOSE = yes
 # 1127556 9e
 export XZ_OPT = -6e
 
-old_NEWS_hash = 5bddbd1a2cbbe3c14635c0bba293af50
+old_NEWS_hash = da867d7903ff4936e2ee6c173e20fb63
 
 # We prefer to spell it back-reference, as POSIX does.
 sc_prohibit_backref: