diff --git a/gromox-2.15.tar.asc b/gromox-2.15.tar.asc
deleted file mode 100644
index 4da1f73..0000000
--- a/gromox-2.15.tar.asc
+++ /dev/null
@@ -1,7 +0,0 @@
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-=osOJ
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diff --git a/gromox-2.15.tar.zst b/gromox-2.15.tar.zst
deleted file mode 100644
index 22d8516..0000000
--- a/gromox-2.15.tar.zst
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:8bdca19409d1700ab90aefd31e12cc38a4a0a09172868b36f27090cce112ac63
-size 2049370
diff --git a/gromox-2.16.tar.asc b/gromox-2.16.tar.asc
new file mode 100644
index 0000000..65acecd
--- /dev/null
+++ b/gromox-2.16.tar.asc
@@ -0,0 +1,7 @@
+-----BEGIN PGP SIGNATURE-----
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+=ktdq
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diff --git a/gromox-2.16.tar.zst b/gromox-2.16.tar.zst
new file mode 100644
index 0000000..a26e16a
--- /dev/null
+++ b/gromox-2.16.tar.zst
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0d03af059f3807ce9c118844f95f23c0d1813292d558acbb42ab5847d2dff157
+size 2059772
diff --git a/gromox.changes b/gromox.changes
index bd269eb..ea209d8 100644
--- a/gromox.changes
+++ b/gromox.changes
@@ -1,3 +1,19 @@
+-------------------------------------------------------------------
+Sun Oct 29 18:44:37 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 2.16
+  * Enhancements:
+  * Define the "suspended" user state for grommunio-admin-api.
+    (think of it as a "non-receiving shared mailbox").
+  * emsmdb, zcore: the ``emsmdb_max_cxh_per_user``,
+    ``emsmdb_max_obh_per_session`` and
+    ``zcore_max_obh_per_session`` config directives can now be
+    set to 0 for unlimited.
+  * Fixes:
+  * oxvcard: export to .vcf now positions the VERSION property in
+    accordance with the vCard 4.0 specification.
+  * oxcmail: cease gratuitous RTF conversion of calendar items.
+
 -------------------------------------------------------------------
 Wed Oct 18 13:01:38 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/gromox.dsc b/gromox.dsc
index 04814b7..629b53f 100644
--- a/gromox.dsc
+++ b/gromox.dsc
@@ -1,7 +1,7 @@
 Format: 1.0
 Source: gromox
 Architecture: any
-Version: 2.15
+Version: 2.16
 DEBTRANSFORM-RELEASE: 1
 Maintainer: Gromox <null@gromox.com>
 Homepage: https://gromox.com
@@ -19,9 +19,11 @@ Build-Depends:
  gettext,
  libbfio-dev,
  libcurl4-openssl-dev,
+ libesedb-dev,
  libfmt-dev (>= 8),
  libhx-dev (>= 4.12),
  libjsoncpp-dev (>= 1.4.0),
+ libkrb5-dev,
  libldap2-dev,
  libmariadbclient-dev | libmysqlclient-dev | libmariadb-dev,
  libpam0g-dev,
diff --git a/gromox.spec b/gromox.spec
index e894492..a06873a 100644
--- a/gromox.spec
+++ b/gromox.spec
@@ -19,7 +19,7 @@
 %define _libexecdir %_prefix/libexec
 
 Name:           gromox
-Version:        2.15
+Version:        2.16
 Release:        0
 Summary:        Groupware server backend with RPC, IMAP,POP3, PHP-MAPI support
 License:        AGPL-3.0-or-later AND GPL-2.0-only AND GPL-3.0-or-later
@@ -51,9 +51,11 @@ BuildRequires:  zstd
 BuildRequires:  group(gromox)
 BuildRequires:  pkgconfig(fmt) >= 8
 BuildRequires:  pkgconfig(jsoncpp) >= 1.4.0
+BuildRequires:  pkgconfig(krb5-gssapi)
 BuildRequires:  pkgconfig(libHX) >= 4.12
 BuildRequires:  pkgconfig(libcrypto)
 BuildRequires:  pkgconfig(libcurl)
+BuildRequires:  pkgconfig(libesedb)
 BuildRequires:  pkgconfig(libolecf)
 BuildRequires:  pkgconfig(libpff)
 BuildRequires:  pkgconfig(libssl)
@@ -120,7 +122,7 @@ grommunio-web. The grommunio appliance ships these essentials and has a
 ready-to-run installation of Gromox.
 
 %prep
-%autosetup -p0
+%autosetup -p1
 
 %build
 autoreconf -fi