The Next Twenty Years of Java: Where We've Been and Where We're Going

1995 was the year AOL floppy disks arrived in the mail, Netscape Navigator was born and the first public version of Java was released. Over the next two decades, Java witnessed the multi-core revolution, the birth of the cloud, and the rise of polyglot programming. It survived these upheavals by evolving with them, and it continues to evolve even as we celebrate Java's twentieth birthday this year.

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Heroku Review Apps Beta

Today we’re announcing a feature that is going to change the way teams test and evaluate code changes. Continuous delivery works best when all team members — designers and testers included — can efficiently visualize and review the result of proposed changes. With Review Apps enabled, Heroku will spin up temporary test apps for every pull request that’s opened on GitHub, complete with fresh add-ons and other config required to make the app run. Instead of relying only on code reviews and unit tests run by CI, teams can use Review Apps to immediately try out and debug code branches in a production-like environment on Heroku. Review apps speed up team decision-making so that you can deliver better apps faster, and with greater confidence.

The Review Apps feature builds on the GitHub Integration announced in February and combines two things in this world that are good and righteous:

  • Heroku apps and the ease and speed of creating them from app.json templates
  • GitHub pull requests for reviewing and discussing changes to source code

This is great if you’re using GitHub Flow to propose, discuss and merge changes to your code. Because pull request branches are deployed to new apps on Heroku, it’s quick and simple for you and your collaborators to test and debug changes proposed in the PR and decide whether it’s ready to merge, needs more work or to close it because it’s not the experience you want.

Read on below, or check the Dev Center docs for details.

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Heroku Redis Now Available in Public Beta

Developers increasingly need a variety of datastores for their projects -- no one database can serve all the needs of a modern, scalable application. For example, an e-commerce app might store its valuable transaction data in a relational database while user session information is stored in a key-value store because it changes often and needs to be accessed quickly. This is a common pattern across many app types, and the need for a key-value store is especially acute. Today, we are pleased to announce the beta of Heroku Redis, joining Heroku Postgres as our second data service.

We have deep experience with Redis; internally at Heroku, we use Redis extensively as a queue, as a cache, and in a variety of other roles to complement Postgres and to build Heroku. Redis’ high throughput, in-memory architecture and simplicity of interface via key-value semantics makes it ideal for building data-driven applications. The beta of our Heroku Redis service adds to those native strengths a number of developer experience features that make it easy to utilize Redis at any scale, including performance analytics and metrics logs. With these added usability features and the reliability developers have come to expect from Heroku, we believe you can build more powerful data-driven apps than ever before.

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New Dyno Types and Pricing Public Beta

Today, we’re introducing a suite of new dynos. These dynos introduce new capabilities and price points and reduce the cost of scaling businesses on Heroku. These new dynos enter beta today.

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Heroku’s Free (as in beer) Dynos

Heroku comes from and is built for the developer community; the values of experimentation, openness and accessibility have been part of the product from day one, and continue to drive its development. From our first days, we have provided a free tier that followed in the tradition of making it as easy and fun as possible for developers to learn and play, discover new technologies, and build new apps — and that's not changing. It's as rewarding to us today as it was seven years ago to see experienced developers, students and hobbyist hackers use Heroku in that spirit every day.

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