Updates

Get the latest version.

Enter the licence key you were given when you bought . It never expires, and it always gets you the newest build. Everything that's ever changed is listed below.

Lost your key? Email support from the address you bought with and we'll look it up.

How updating works

Install over the top. Run the new installer exactly like the first one. It replaces the app in place.

Your data stays. Your chats, your memory, and your downloaded AI model live in your own folder, not inside the app. Updating doesn't touch them, and you won't re-download the model.

Updates are free, forever. You paid once. That's the whole deal — there's no subscription hiding behind this page.

Why a key at all?

Only to stop the installer being handed out for free — is made by a very small operation, and people paying for it is the only reason it exists.

You enter it inside once, to activate. After that it runs on your own machine; when you're online it quietly confirms your licence is still valid — that check sends only the ID, never anything about your conversations. Day to day you can work offline, and a valid copy keeps working even if our servers don't. A refunded or cancelled licence is deactivated.

Dev log

Everything that's changed

Every version of since the first one, newest first. Updates are free — the key above always gets you the latest.

0.2.1

Current July 31, 2026

Sevelle gets more useful with files, stops pretending it can't touch them, and finally formats replies while it's writing them.

New
  • Save any code block to a file. Hover a block of code and click Save. You choose where it goes, so this works even in a chat where you haven't shared anything — and Sevelle will point you at it instead of telling you to retype the code into Notepad.
  • Share more than one folder with a chat, or share just a single file when that's all the job needs. A shared file gives Sevelle that file and nothing else in its folder. Each one can be unshared from the + menu without closing the chat.
  • Reply length and creativity in Settings. Choose how much room Sevelle has to answer, and whether it sticks to the likeliest wording (better for code and facts) or takes more chances (better for writing and ideas).
  • Ask Sevelle to remind you. "Remind me in two hours to send the invoice." It tells you at the time — it never runs anything on its own, and anything that needs doing you approve then, as usual. Reminders you missed while Sevelle was closed still show up, and say how late they are.
  • Real speeds for every model. The picker now shows how fast each model actually runs on your PC, measured from your own chats, and recommends based on that instead of guessing from your graphics card.
  • An activity log you can read. Every file action Sevelle takes — what it did, when, and whether it worked — is written to a plain text file in your Sevelle folder. Failures included. File contents never are.
  • A note about what changed the first time you open Sevelle after an update.
Changed
  • Looking at your files no longer asks each time. Sharing a folder is the permission — a second prompt to confirm each read told you nothing you hadn't already decided, and answering questions that don't need thought is how people learn to click Approve without reading it. So Sevelle now reads, lists and searches what you've shared straight away, and the approval is saved for what it's actually for: anything that creates, edits, moves or removes a file, and any command, still shows you exactly what it will do and waits. Every read is still written to the activity log.
  • Sevelle can read PDFs and Word documents in a folder you've shared, rather than only plain text — and searching looks inside them too. A scanned document says so instead of appearing empty.
  • It won't remove anything too large for the Recycle Bin, or on a network or removable drive, because Windows deletes those permanently instead of recycling them.
Fixed
  • Code keeps its indentation. Replies were having runs of spaces collapsed on the way to the screen, which flattened every level of indentation in a code block — Python written by Sevelle looked right and wouldn't run.
  • Replies format as they're written. Until now the text arrived as one flat grey block and only snapped into headings, bold and code blocks once it finished — so the whole time Sevelle was working, it looked broken.
  • Message times are the times you sent them. Reopening an old conversation used to stamp every message with the moment you clicked on it.
  • A chat remembers which model wrote it and offers to switch back, so picking up an old conversation on a smaller model doesn't quietly change the quality of the answers.
  • Sevelle now refuses to bin any folder you shared with it, not just the first one.

0.2.0

July 27, 2026

Sevelle can now help with your files — if you want it to. Everything here is switched off until you turn it on, and it asks permission before it changes anything.

New
  • Share a folder with a chat. Use the + button beside the message box to let Sevelle look at one folder you choose. It can list, read and search what's in there — so you can ask "what's in these files?" or "find anything about the invoice". Sharing lasts for that conversation only, and Sevelle can't reach anywhere else on your computer.
  • Let it organise, if you like. A second switch lets Sevelle create folders, rename, move and write files in that folder. It shows you every change first. Anything it removes goes to your Recycle Bin, never permanently deleted.
  • Undo last action. Changed your mind? One button puts it back — and it still works after closing and reopening Sevelle. A set of changes you approved together undoes together.
  • It tells you the plan first. For anything with several steps, Sevelle explains what it intends to do and waits for you to agree, then shows all the changes together instead of asking you the same question twenty times.
  • Running commands (advanced, off by default). If you switch it on, Sevelle can propose a Windows command, shown to you in full, which runs only if you allow it. Two honest warnings: a command isn't limited to your shared folder the way file actions are, and it can't be undone. Sevelle refuses obviously destructive commands and flags ones that look like they reach outside your folder. For adults.
  • A backup button for your conversations, memory and settings — one file you keep.
Changed
  • Sevelle now keeps plenty of disk space free rather than letting a big model download fill your drive.
  • The Windows file details for Sevelle now show its version and publisher properly.

0.1.8

July 24, 2026

Small everyday improvements: work with individual messages, keep your own backup, and see how much of a long conversation Sevelle can still hold.

New
  • Message actions. Hover any message to copy it. You can edit one of your own messages and ask again, or ask Sevelle for a fresh take on a reply you didn't like.
  • Back up your data. One button saves your conversations, memory and settings into a single file you keep — handy for moving Sevelle to another computer.
  • Chat memory meter. A long conversation eventually outgrows what the model can hold at once. Sevelle now shows how full that is, and tells you plainly when the earliest messages stop being included.
Changed
  • Model downloads show their speed and how long is left, and quietly retry themselves if your connection drops.
  • Sevelle checks your installed models at startup and flags a damaged one instead of failing to load later.
8 earlier releases — 0.1.7 back to 0.1.0

0.1.7

July 23, 2026

You're more in control of your models and updates: manage what's on your disk, downloads that survive a dropped connection, and optional one-click updates.

New
  • Manage your models. Remove any downloaded model to free up space, and see at a glance how much disk your models use and how much is free. Each model now shows its name and exactly what graphics card it needs.
  • Sturdier downloads. A model download now resumes where it left off if your connection drops, shows its progress from anywhere in the app, and is checked for integrity so a corrupted file can't slip through.
  • Optional automatic updates. Off by default. Turn it on and Sevelle will download a new version in the background, verify it's genuine, and offer a one-click install — you always approve, nothing installs on its own.
Changed
  • Sevelle warns before loading a model too big for your graphics card, and won't start a download that wouldn't fit on your drive.

0.1.6

July 21, 2026

Sevelle now activates once when you first open it, and its AI models are served from our own servers.

New
  • One-time activation. The first time you open Sevelle, you enter the ID from your receipt once. After that it runs on your own machine, offline, exactly as before — no account and no repeat sign-ins.
  • Models come straight from us. The AI models now download from Sevelle's own servers rather than a third-party host, so setup is faster and more reliable and doesn't depend on anyone else staying online.
  • A bigger library. More than 20 models are now available, sorted by how much video memory your graphics card has, so there's a right-sized choice whether you're on a laptop or a powerful GPU.
Changed
  • A licence that's been refunded or cancelled is deactivated. Sevelle only checks this when it's online, and a valid copy keeps working normally — including fully offline.

0.1.5

July 18, 2026

A bug-fix release, and one genuine privacy fix that's worth explaining properly rather than burying in a list.

Privacy
  • Sevelle never loads images from the internet. Sevelle is text-only, but it would occasionally write out an image link anyway, and the chat window would try to load it. Nothing about you or your conversation was ever included in that request — but the promise is that nothing leaves your machine, so image links are now shown as plain text and never fetched.
Fixed
  • Undo works. When Sevelle remembered something and you clicked "undo", it often did nothing — it only worked on short, simple facts, and silently failed on anything longer or with unusual spacing. It now removes what it says it removes.
  • Switching between light and dark is fast again. It used to get slower the longer your conversation was.
Changed
  • Messages are easier to tell apart: the small lettered circles are gone, replaced by a name and a quiet gold line down the side of Sevelle's replies.
  • Switching theme now sweeps across the window from the button, the same way it does on this site.
  • Sevelle is friendly, but it's clearer now that it's an assistant rather than a person — it won't play along with being your partner. It's used by people as young as 13, and that felt like the right line.

0.1.4

July 17, 2026

The first version available to buy. A leaner install, and the terms are now shown and accepted during setup rather than buried on a page somewhere.

Added
  • The full licence terms are shown during installation, and setup won't continue until you accept them. Nothing about how Sevelle works should be a surprise after you've paid.
Changed
  • Smaller, faster install — roughly 300 MB trimmed from the download.

0.1.3

July 2026 · pre-release
Fixed
  • Updating works while Sevelle is still open. Previously the update failed with an error about a file being in use, and you had to quit the app first.

0.1.2

July 2026 · pre-release
Added
  • PDF attachments — drop a PDF into a chat and ask about it.
  • A switch in Settings to turn the startup update check off completely.
Fixed
  • Switching chats while a reply was still being written could drop that reply into the wrong conversation. This was the worst bug in the app and it's gone.
  • Chat history is now written atomically, so a crash mid-save can't leave a conversation truncated.
  • A console window no longer flashes on screen at startup.
  • Settings showed the wrong folder for where your memory file lives. It now shows the real one.
  • The context length the app reported didn't match what the engine was actually given.
Removed
  • The placeholder letter avatars beside messages.

0.1.1

July 2026 · pre-release
Changed
  • Bundled dependencies updated to current versions, including a security update to the image library.
  • Groundwork for licence-key delivery and in-app updates.

0.1.0

2026 · pre-release

The first build. Detects your graphics card, recommends a model that will actually run on it, downloads it, and opens a chat window — all offline after that first download. Chats and memory stored as plain files you own.