Tim Abbott

Tim Abbott is the lead developer of the Zulip open source project and CEO of Kandra Labs, the company providing Zulip hosting and commercial support. Previously, he was founder and CTO of Ksplice.

San Francisco

29 posts

Release announcements

Zulip Server 3.1 bug fix release

We released Zulip Server 3.1 today. This is a bug fix release, containing a few dozen cherry-picked changes since Zulip Server 3.0. What’s newThis releases fixes multiple important bugs in previous versions of Zulip. It contains fixes for the following issues:

Zulip 3.0: Threaded open source team chat

We’re excited to announce the release of Zulip Server 3.0, containing hundreds of new features and bug fixes to help distributed and remote teams stay productive and focused. Zulip is the open-source threaded team chat app, used by thousands of teams globally.

Release announcements

Zulip Server 2.1.7 security release

We released Zulip Server 2.1.7 today. This is a security release, containing a couple cherry-picked changes since Zulip Server 2.1.6. What’s newThis releases fixes multiple important bugs in previous versions of Zulip. It contains fixes for the following issues:

Release announcements

Zulip Server 2.1.5 security release

We released Zulip Server 2.1.5 today. This is a security release, containing a dozen cherry-picked changes since Zulip Server 2.1.4. What’s newThis releases fixes several important bugs in previous versions of Zulip. It contains fixes for the following issues:

Release announcements

Zulip Server 2.1.4 bug fix release

We released Zulip Server 2.1.4 today. This is a bug fix release, containing several cherry-picked changes since Zulip 2.1.3. What’s newThis releases fixes a few important bugs in previous versions of Zulip. It contains fixes for the following issues:

Release announcements

Zulip server 2.1.3 security release

We released Zulip Server 2.1.3 today. This is a security release, containing a few dozen cherry-picked changes since Zulip 2.1.2. What’s newThis releases fixes several important bugs in previous versions of Zulip. It contains fixes for the following issues:

Release announcements

Zulip Desktop 5.0.0 security release

Today we released Zulip Desktop 5.0.0, fixing multiple critical security issues as well as several other important issues: CVE-2020-10856: Remote code execution due to missing context isolation.CVE-2020-10857: Remote code execution due to unsafe use of shell.openExternal and shell.openItem.Downloaded

Release announcements

Zulip Desktop 4.0.3 security release

Today we released Zulip Desktop 4.0.3, fixing a critical security issue: CVE-2020-9443: Web security was disabled in the Electron webview.This is a critical security issue because Zulip's security model for uploaded files relies on the browser (in this case Electron) enforcing

Release announcements

Zulip 2.1.2 security release

We released Zulip Server 2.1.2 today. This is a security release, containing a few dozen cherry-picked changes since Zulip 2.1.1. What’s newThis releases fixes several important bugs in previous versions of Zulip. It contains fixes for the following issues:

Release announcements

Zulip 2.1.1 bug fix release

We released Zulip Server 2.1.1 today. This is a bug fix release, containing several cherry-picked changes since Zulip 2.1.1. What’s newThis releases fixes a few important bugs in previous versions of Zulip. It contains fixes for the following issues:

Zulip 2.1: Open source team chat

We're excited to announce the release of Zulip Server 2.1, containing hundreds of new features and bug fixes. Zulip is the world’s most productive team chat software, used by thousands of teams as an alternative to Slack, HipChat, Mattermost and IRC. Zulip's

Release announcements

Zulip 2.0.8 security release

We released Zulip Server 2.0.8 today. This is a security release, containing a handful of cherry-picked changes since Zulip 2.0.7. What’s newThis release fixes a security bug in Zulip 1.9.0 and greater: CVE-2019-19775: Close open redirect in

Release announcements

Zulip 2.0.7 security release

We released Zulip Server 2.0.7 today. This is a security release, containing a handful of cherry-picked changes since Zulip 2.0.6. What’s newThis release fixes an important security bug in previous versions of Zulip. Quoting from the commit fixing it:

Release announcements

Zulip 2.0.6 bug fix release

We released Zulip Server 2.0.6 today. This is a bug fix release, containing several cherry-picked changes since Zulip 2.0.5. What’s new This releases fixes a few important bugs in previous versions of Zulip. It contains fixes for the following

Release announcements

Zulip Server 2.0.5 security release

We released Zulip Server 2.0.5 today. This is a security release, containing a handful of cherry-picked changes since Zulip 2.0.4. What’s new This releases fixes a few important bugs in previous versions of Zulip. It contains fixes for the

Release announcements

Zulip Server 2.0.4 bug fix release

We released Zulip Server 2.0.4 today. This is a bug fix release, containing a dozen cherry-picked changes since Zulip 2.0.3. What’s new This releases fixes a few important bugs in Zulip 2.0.3. It contains the following changes:

Release announcements

Zulip Server 2.0.3 bug fix release

We released Zulip Server 2.0.3 today. This is a bug fix release, containing a few dozen cherry-picked changes since Zulip 2.0.2. What’s new This releases fixes a few important bugs in Zulip 2.0.2. It contains the following

Release announcements

Zulip Server 2.0.2 bug fix release

We released Zulip Server 2.0.2 today. This is a bug fix release, containing a dozen cherry-picked changes since Zulip 2.0.1. What’s new This releases fixes a few important bugs in Zulip 2.0.1. It contains the following changes:

Release announcements

Zulip 2.0.1 bug fix release

We released Zulip Server 2.0.1 today. This is a bug fix release, containing a dozen cherry-picked changes since Zulip 2.0.0. What’s new This releases fixes a few important bugs in Zulip 2.0.0. It contains the following changes:

Zulip 2.0: Open source team chat

We're excited to announce the release of Zulip Server 2.0, containing hundreds of new features and bug fixes. Zulip is the world’s most productive team chat software, used by thousands of teams as an alternative to Slack, HipChat, Mattermost and IRC. Zulip's

Release announcements

Zulip 1.9.2 maintenance release

We released Zulip Server 1.9.2 today. This is a bug fix release, containing a few dozen cherry-picked changes since 1.9.1. What’s new This release is primarily to migrate Zulip off the deprecated Google+ API, which Google plans to remove

Release announcements

Zulip 1.9.1 bug fix release

We released Zulip Server 1.9.1 today. This is a bug fix release, containing a few dozen cherry-picked changes since 1.9.0. What’s new This release is primarily to improve the experience for users installing a new Zulip server: new installer

Zulip 1.9: Open source team chat

We're excited to announce the release of Zulip Server 1.9, containing hundreds of new features and bug fixes. Especially relevant for users migrating from the recently discontinued HipChat is our new HipChat data import tool. img.image-wide-only { float: right; margin-left: 20px; left: 0;

Release announcements

Zulip 1.8.1 bug fix release

Today we’re releasing Zulip Server 1.8.1. This is a bug fix release, containing a few dozen cherry-picked changes since 1.8.0. What’s new The highlights of this release are primarily for folks installing a new Zulip server: a tool

Zulip 1.8: Open source team chat

We're excited to announce the release of Zulip Server 1.8, containing hundreds of new features and bug fixes. Zulip is the world’s most productive team chat software, an alternative to Slack, HipChat, and IRC. Zulip combines the immediacy of chat with the