git: 6b6bc9afa0b0 - releng/15.0 - Add UPDATING entries and bump version

The branch releng/15.0 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=6b6bc9afa0b09765355f74a2f11cee069e7a37ef

commit 6b6bc9afa0b09765355f74a2f11cee069e7a37ef
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2026-04-20 13:45:24 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2026-04-20 19:41:20 +0000

    Add UPDATING entries and bump version
    
    Approved by:    so
---
 UPDATING            | 17 +++++++++++++++++
 sys/conf/newvers.sh |  2 +-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/UPDATING b/UPDATING
index c70721ba8726..f6a6ce827ab8 100644
--- a/UPDATING
+++ b/UPDATING
@@ -12,6 +12,23 @@ Items affecting the ports and packages system can be found in
 /usr/ports/UPDATING.  Please read that file before updating system packages
 and/or ports.
 
+20260421:
+	15.0-RELEASE-p6	SA-26:10.tty
+			SA-26:11.amd64
+			EN-26:05.vm
+			EN-26:06.timerfd
+			EN-26:07.pkgbase
+
+	Kernel use-after-free bug in the TIOCNOTTY handler. [SA-26:10.tty]
+
+	Missing large page handling in pmap_pkru_update_range(). [SA-26:11.amd64]
+
+	The page fault handler fails to zero memory. [EN-26:05.vm]
+
+	Periodic timerfd(2) timers may produce incorrect results. [EN-26:06.timerfd]
+
+	Base packages fail to build with newer versions of libucl. [EN-26:07.pkgbase]
+
 20260325:
 	15.0-RELEASE-p5	SA-26:06.tcp
 			SA-26:07.nvmf
diff --git a/sys/conf/newvers.sh b/sys/conf/newvers.sh
index 6044b7921c52..0e4301c996bb 100644
--- a/sys/conf/newvers.sh
+++ b/sys/conf/newvers.sh
@@ -51,7 +51,7 @@
 
 TYPE="FreeBSD"
 REVISION="15.0"
-BRANCH="RELEASE-p5"
+BRANCH="RELEASE-p6"
 if [ -n "${BRANCH_OVERRIDE}" ]; then
 	BRANCH=${BRANCH_OVERRIDE}
 fi