Additions and changes to the Heroku platform.

January 15, 2020

• Heroku-16 and Heroku-18 Stack Images Updated

January 08, 2020

• Default Tomcat version is now 9.0.30

December 25, 2019

• Ruby 2.7.0 is now available on Heroku

December 23, 2019

• New Python versions available

December 22, 2019

• Ruby 2.7.0-rc2 now available on Heroku

December 20, 2019

• Late December 2019 PHP Updates

December 19, 2019

• Data add-on notification subject lines have been updated

December 17, 2019

• Heroku's Java support now supports Maven Wrapper without binary JAR

December 16, 2019

• Postgresql client library libpq version 5.12.1 now vendored into Ruby applications on Heroku-18
• Ruby apps will now have the `BUNDLED WITH` declaration in their `Gemfile.lock` removed after detecting Bundler version
• JVM Runtime Metrics agent updated

December 12, 2019

• Early December 2019 PHP updates

December 09, 2019

• Heroku-16 and Heroku-18 Stack Images Updated

December 03, 2019

• PostgreSQL 12 now in Beta on Heroku Postgres

November 23, 2019

• Ruby 2.7.0-preview3 now available on Heroku

November 07, 2019

• New Review Apps now generally available
• Heroku Data Services can now connect to Amazon VPCs via AWS PrivateLink
• Heroku Postgres databases can now connect to external resources via mutual TLS

November 06, 2019

• Apache Kafka 2.3.1 is now available
• Heroku-16 and Heroku-18 Stack Images Updated

October 31, 2019

• Build, CI and Release Phase output now limited to 300 MB

October 30, 2019

• JRuby 9.2.9.0 now available

October 24, 2019

• Node.js now defaults to Node 12
• October 2019 PHP updates

October 22, 2019

• Python 2.7.17 now available on Heroku

October 21, 2019

• Python 3.8.0 and 3.7.5 now available
• Cedar-14, Heroku-16 and Heroku-18 Stack Images Updated

October 17, 2019

• Redis 5.0 is the new default version of Heroku Redis
• New Review Apps now in Public Beta

October 16, 2019

• Heroku Connect now supports Salesforce API v47.0
• JDK 13.0.1, 11.0.5, 8u232, and 7u242 now available

October 15, 2019

• Using old and EOL versions of Ruby now generate warnings
• Default Ruby version for new apps is now 2.5.7

October 14, 2019

• Java support upgrades Maven to 3.6.2

October 11, 2019

• Support for Large Domain Lists in Dashboard

October 08, 2019

• Cedar-14, Heroku-16 and Heroku-18 Stack Images Updated

October 02, 2019

• Ruby version 2.4.9 is now available

October 01, 2019

• Apache Kafka on Heroku Shield now generally available
• Ruby versions 2.4.8, 2.5.7, and 2.6.5 are now available

September 27, 2019

• September 2019 PHP updates