diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+## Version 3.1.2.2
+
+* Allow bytestring 0.11
+  [#490](https://github.com/haskell/network/pull/490)
+* Export StructLinger
+  [#491](https://github.com/haskell/network/pull/491)
+* Fix a couple of broken tests on OpenBSD
+  [#498](https://github.com/haskell/network/pull/498)
+
 ## Version 3.1.2.1
 
 * Increasing base lower bound to 4.9.
diff --git a/Network/Socket.hs b/Network/Socket.hs
--- a/Network/Socket.hs
+++ b/Network/Socket.hs
@@ -142,6 +142,7 @@
                   ,UseLoopBack,UserTimeout,IPv6Only
                   ,RecvIPv4TTL,RecvIPv4TOS,RecvIPv4PktInfo
                   ,RecvIPv6HopLimit,RecvIPv6TClass,RecvIPv6PktInfo)
+    , StructLinger (..)
     , isSupportedSocketOption
     , whenSupported
     , getSocketOption
diff --git a/Network/Socket/Options.hsc b/Network/Socket/Options.hsc
--- a/Network/Socket/Options.hsc
+++ b/Network/Socket/Options.hsc
@@ -25,6 +25,7 @@
   , setSocketOption
   , getSockOpt
   , setSockOpt
+  , StructLinger (..)
   ) where
 
 import qualified Text.Read as P
@@ -313,7 +314,16 @@
 {-# COMPLETE CustomSockOpt #-}
 #endif
 #ifdef SO_LINGER
-data StructLinger = StructLinger CInt CInt
+-- | Low level 'SO_LINBER' option value, which can be used with 'setSockOpt'.
+--
+data StructLinger = StructLinger {
+    -- | Set the linger option on.
+    sl_onoff  :: CInt,
+
+    -- | Linger timeout.
+    sl_linger :: CInt
+  }
+  deriving (Eq, Ord, Show)
 
 instance Storable StructLinger where
     sizeOf    _ = (#const sizeof(struct linger))
diff --git a/Network/Socket/Posix/Cmsg.hsc b/Network/Socket/Posix/Cmsg.hsc
--- a/Network/Socket/Posix/Cmsg.hsc
+++ b/Network/Socket/Posix/Cmsg.hsc
@@ -44,7 +44,7 @@
 
 -- | The identifier for 'IPv4TTL'.
 pattern CmsgIdIPv4TTL :: CmsgId
-#if defined(darwin_HOST_OS) || defined(freebsd_HOST_OS)
+#if defined(darwin_HOST_OS) || defined(freebsd_HOST_OS) || defined(openbsd_HOST_OS)
 pattern CmsgIdIPv4TTL = CmsgId (#const IPPROTO_IP) (#const IP_RECVTTL)
 #else
 pattern CmsgIdIPv4TTL = CmsgId (#const IPPROTO_IP) (#const IP_TTL)
@@ -131,7 +131,7 @@
 ----------------------------------------------------------------
 
 -- | Time to live of IPv4.
-#if defined(darwin_HOST_OS) || defined(freebsd_HOST_OS)
+#if defined(darwin_HOST_OS) || defined(freebsd_HOST_OS) || defined(openbsd_HOST_OS)
 newtype IPv4TTL = IPv4TTL CChar deriving (Eq, Show, Storable)
 #else
 newtype IPv4TTL = IPv4TTL CInt deriving (Eq, Show, Storable)
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
-# [`network`](http://hackage.haskell.org/package/network) [![Build Status](https://travis-ci.org/haskell/network.svg?branch=master)](https://travis-ci.org/haskell/network) [![Build status](https://ci.appveyor.com/api/projects/status/5erq63o4m29bhl57/branch/master?svg=true)](https://ci.appveyor.com/project/eborden/network/branch/master)
+![GitHub Actions status](https://github.com/haskell/network/workflows/Haskell%20CI/badge.svg)
+# [`network`](http://hackage.haskell.org/package/network)
 
 To build this package directly from git, you must run `autoreconf -i`.
 And then use `cabal configure; cabal build` or `stack build`.
diff --git a/configure b/configure
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for Haskell network package 3.1.1.0.
+# Generated by GNU Autoconf 2.69 for Haskell network package 3.1.2.1.
 #
 # Report bugs to <libraries@haskell.org>.
 #
@@ -580,8 +580,8 @@
 # Identity of this package.
 PACKAGE_NAME='Haskell network package'
 PACKAGE_TARNAME='network'
-PACKAGE_VERSION='3.1.1.0'
-PACKAGE_STRING='Haskell network package 3.1.1.0'
+PACKAGE_VERSION='3.1.2.1'
+PACKAGE_STRING='Haskell network package 3.1.2.1'
 PACKAGE_BUGREPORT='libraries@haskell.org'
 PACKAGE_URL=''
 
@@ -1234,7 +1234,7 @@
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures Haskell network package 3.1.1.0 to adapt to many kinds of systems.
+\`configure' configures Haskell network package 3.1.2.1 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1299,7 +1299,7 @@
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of Haskell network package 3.1.1.0:";;
+     short | recursive ) echo "Configuration of Haskell network package 3.1.2.1:";;
    esac
   cat <<\_ACEOF
 
@@ -1384,7 +1384,7 @@
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-Haskell network package configure 3.1.1.0
+Haskell network package configure 3.1.2.1
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1910,7 +1910,7 @@
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by Haskell network package $as_me 3.1.1.0, which was
+It was created by Haskell network package $as_me 3.1.2.1, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -4417,7 +4417,7 @@
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by Haskell network package $as_me 3.1.1.0, which was
+This file was extended by Haskell network package $as_me 3.1.2.1, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -4470,7 +4470,7 @@
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-Haskell network package config.status 3.1.1.0
+Haskell network package config.status 3.1.2.1
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/network.cabal b/network.cabal
--- a/network.cabal
+++ b/network.cabal
@@ -1,6 +1,6 @@
 cabal-version:  1.18
 name:           network
-version:        3.1.2.1
+version:        3.1.2.2
 license:        BSD3
 license-file:   LICENSE
 maintainer:     Kazu Yamamoto, Evan Borden
@@ -88,7 +88,7 @@
 
   build-depends:
     base >= 4.9 && < 5,
-    bytestring == 0.10.*,
+    bytestring >= 0.10 && < 0.12,
     deepseq,
     directory
 
diff --git a/tests/Network/SocketSpec.hs b/tests/Network/SocketSpec.hs
--- a/tests/Network/SocketSpec.hs
+++ b/tests/Network/SocketSpec.hs
@@ -131,7 +131,7 @@
 
 #if defined(mingw32_HOST_OS)
     let lpdevname = "loopback_0"
-#elif defined(darwin_HOST_OS) || defined(freebsd_HOST_OS)
+#elif defined(darwin_HOST_OS) || defined(freebsd_HOST_OS) || defined(openbsd_HOST_OS)
     let lpdevname = "lo0"
 #else
     let lpdevname = "lo"
