On August 20, 2026, OpenAI shipped a batch of updates to ChatGPT and Codex that quietly turned the desktop app from a chatbot with a file picker into something that actually touches your workflow. The two headline features — Apple Messages integration and GitLab support in Codex cloud — are the kind of changes that sound incremental until you use them, and then you wonder how you worked without them.

ChatGPT can now read and send your iMessages

The Apple Messages plugin is available on all plans in the ChatGPT desktop app for macOS. Once enabled, ChatGPT can search your message history, summarize conversations, draft replies, and send messages through Messages on your Mac. The key detail: by default, ChatGPT does not send anything without your explicit approval. You see the message and the recipients before anything goes out.

This is a bigger deal than it sounds. Think about the last time you needed to find a specific piece of information buried in a text conversation — an address, a confirmation number, a date someone mentioned three weeks ago. Previously, that meant scrolling through Messages manually or giving up. Now you can ask ChatGPT to find it.

The plugin works in ChatGPT Work and Codex, not in regular ChatGPT chats. That distinction matters. OpenAI is positioning this as a work tool, not a casual feature. The approval flow is on by default, but there is a persistent-approval option for people who want ChatGPT to send messages without asking every time. The release notes explicitly call out the risks of enabling that, which is a good sign that OpenAI is thinking about the trust implications.

There is a known issue with tasks that disable approval prompts, so if you are running automated workflows, double-check your settings before letting ChatGPT loose on your messages.

GitLab comes to Codex cloud

The second major feature is GitLab support in Codex cloud, launched in beta on August 19. If your team uses GitLab — including GitLab Self-Managed and GitLab Dedicated — you can now connect a project to Codex, create a cloud environment, and start tasks directly from issues or merge requests using @codex.

The integration supports one-off and automatic merge request reviews. Codex will review your diffs, leave comments, and flag issues. It runs entirely in Codex cloud, so your code does not get processed on your local machine. A managed workspace admin can disable the connector if your organization has compliance concerns.

For GitLab Self-Managed and Dedicated, a workspace admin needs to configure the connection, and webhook activity requires GitLab 19.0 or later. There is a known limitation: Codex cannot complete a review when GitLab collapses or oversizes a diff, which means very large merge requests may need manual review.

This is the first time Codex has supported a non-Git source control platform natively. If your team has been holding off on Codex because you are not on GitHub, the barrier is gone.

Everything else in the August 20 drop

Site co-editing lets you invite workspace members as editors to ChatGPT Sites. Editable Site URLs mean you can change a site's address without redeploying. Shared thread snapshots let you share read-only Codex threads from the macOS app. Pinned chats now sync between desktop and iOS.

What this means for your daily workflow

If you are on a Mac and you use ChatGPT for work, the Apple Messages plugin alone is worth updating for. Searching your message history through a natural language interface saves five minutes here and there, which adds up fast when you are juggling client communications and team coordination.

The GitLab integration signals that OpenAI is serious about making Codex a real development tool. Automatic merge request reviews combined with the rest of your ChatGPT workflow — review a diff, summarize changes, draft a team message — all in one session.

The free tier changes are also worth noting. As of August 10, OpenAI removed text chat limits for free and Go accounts. Image generation, file uploads, Deep Research, voice mode, Codex, and Work still have limits, but the core chat experience is now unrestricted. Free accounts use GPT-5.6 Luna; access to Terra and Sol requires a subscription.

If you have not opened the ChatGPT desktop app in a while, this is a good week to update it.

Sources: