Bump version to 0.33.0.

Author: ryzhyk

CHANGELOG.md

@@ -3,7 +3,19 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
-## [Unreleased]
+## [0.33.0] - Dec 24, 2020
+
+### Optimizations
+
+- An optimized implementation of the `distinct` operator may save memory and CPU
+  for recursive relations.
+
+### Libraries
+
+- Added support for regex sets to `lib/regex.dl`
+- Added `Vec::pop()` function to `lib/ddlog_std.dl`.
+
+### Miscellaneous improvements:
 
 - Upgrade to the latest versions of timely and differential dataflow crates.
 

src/Language/DifferentialDatalog/Version.hs

@@ -32,7 +32,7 @@ import GitHash
 
 -- Keep this in sync with the binary release version on github
 dDLOG_VERSION :: String
-dDLOG_VERSION = "v0.32.1"
+dDLOG_VERSION = "v0.33.0"
 
 gitHash :: String
 gitHash = giHash $$tGitInfoCwd