August 2026 — Changelog

Aug 1 v6.0.583 DEV Built a new mechanism to automatically repair a message that exists on only one device during multi-device sync, closing a gap where such a message could be detected as missing but never actually resent

Aug 1 — PROD Fixed both backend deployment slots so they stay correctly enabled after a server restart, preventing a potential extended outage

Aug 1 v6.0.583 DEV Chat search's background decryption now logs a clear success signal, closing a gap where there was no way to confirm it wasn't silently falling back to a slower path

Aug 1 v6.0.580→583 PROD A batch of fixes reaches production: the multi-device mirror-sync repair mechanism, and improved diagnostics for chat search's background decryption

Aug 1 v6.0.584 DEV Fixed a rare case where the server could hang for up to 30 seconds during a restart instead of shutting down promptly

Aug 1 v6.0.584 DEV Global search now shows a clear message when there are more than 50 matches, so you know to refine your search

Aug 1 v6.0.584 DEV Internal diagnostic logging now shows when older entries have been dropped, instead of silently losing history

Aug 1 v6.0.585 DEV Fixed global search's interface text not being available in any language other than Spanish since it shipped in July — now properly translated across all supported languages

Aug 1 v6.0.586 DEV Fixed a bug where the new missing-message repair mechanism (above) could silently fail for messages going in one particular direction — confirmed working correctly in both directions after the fix

Aug 1 v6.0.587 DEV Fixed a bug where a delayed confirmation from an interrupted-and-restarted sync could be incorrectly compared against a newer sync's progress, sometimes falsely reporting it as incomplete

Aug 1 v6.0.583→587 PROD A batch of reliability improvements reaches production: the sync-repair fix above, and the sync-confirmation timing fix

Aug 1 — DEV Ran large-scale connection load-testing and found that under very heavy simultaneous load, both the app's own server and its web server were retaining more memory afterward than expected, instead of releasing it

Aug 2 v6.0.588 DEV Shipped a first fix for the memory-retention issue above, reducing how much memory is held onto after heavy load eases

Aug 2 — PROD Fixed the web server not automatically restarting itself if it ever crashed, which previously could take the whole site offline until someone intervened manually

Aug 2 v6.0.589 DEV Found the memory-retention issue also involved an internal connection-handling resource pool with no upper limit — added a safety ceiling to prevent unbounded growth

Aug 2 v6.0.590 DEV Went further than a ceiling: that internal resource pool now automatically shrinks back down once traffic quiets down, instead of just stopping at a limit

Aug 2 v6.0.587→590 PROD The memory-retention fixes above reach production, along with the earlier web-server auto-restart fix — server memory now properly returns to baseline after a traffic spike

Aug 2 — PROD Fixed a real server-capacity limit: the server could run out of available network ports under very high connection counts, well before any memory limit was reached — fixed on both the development and live servers

Aug 2 — PROD Added a daily scheduled maintenance task that gracefully refreshes the web server's internal workers during low-traffic hours, releasing memory it had been holding onto — applied to both the development and live servers

Aug 2 — PROD Verified that the server and every other service sharing its production host recover automatically within under a minute after an unexpected reboot, with no manual steps needed

Aug 2 v6.0.591 DEV Built the foundation for a new higher account tier (Pro): an option to choose it at signup, a visual badge, and admin management tools

Aug 2 v6.0.592 DEV Pre-created invite links: a Pro account holder can now create an account for someone else and send them a one-time link to start a private conversation immediately — aimed at professionals sharing documents with clients through Solo2 instead of less private channels

Aug 3 v6.0.593 DEV Fixed the Pro/founder badge sometimes not updating until a full page reload after a tier change

Aug 3 v6.0.593 DEV Fixed a session-handling bug where opening a Pro invite link in a browser that already had another account open could land inside the wrong account instead of prompting to log in as the new one

Aug 3 v6.0.593 DEV Fixed a leftover "cancel invitation" option that stayed visible after an invite had already been accepted, plus small registration-form and admin-panel improvements

Aug 3 v6.0.594 DEV Fixed a rare "Identity mismatch" error that could incorrectly block testing the invite-link flow twice in a row in the same browser tab

Aug 3 v6.0.590→595 PROD The new Pro account tier and pre-created invite links reach production for all users, along with this arc's bug fixes and full multi-language translation

Aug 4 v6.0.596 DEV Fixed a real gap in invite links: an unused one could silently expire before the account it created did, leaving a recipient who waited a few days with a valid account but no way to connect — invite links now stay valid for as long as the account does

Aug 4 v6.0.597 DEV Moved the option to create a Pro invite from a dropdown menu to a top-level button for easier discovery

Aug 4 v6.0.598 DEV Added the ability to sort your conversation list by name or recent activity, and to copy a message's text directly from its menu

Aug 4 v6.0.599 DEV Fixed a bug where a brand-new account could briefly show Pro-only options right after registering, before self-correcting a few moments later — never a real security issue, since the server always independently re-checks the real account tier, but a real and visible display bug

Aug 4 v6.0.595→599 PROD The invite-link expiry fix, the easier-to-find Pro invite button, conversation sorting, message copying, and the registration display fix all reach production

Aug 4 v6.0.600 DEV Fixed a false "Identity mismatch" error that could incorrectly block switching between your own accounts in the same browser tab

Aug 4 v6.0.600 DEV Fixed the wallet's low-balance warning showing the wrong daily rate for Pro accounts

Aug 4 v6.0.600 DEV Closed a rare data-loss risk where receiving a file sent from a newer app version could silently overwrite an already-received file's record

Aug 4 v6.0.599→600 PROD The account-switching fix, the wallet rate-display fix, and the file-safety fix all reach production

Aug 5 v6.0.601 DEV Built the foundation for a new higher account tier (Business), able to invite and fund new accounts with an admin-configurable bonus

Aug 6 v6.0.608 DEV Found and fixed the real cause of a long-standing connection-capacity limit: a server-side allocation quota had been silently refusing some connections since March

Aug 6 v6.0.600→608 PROD The connection-capacity fix reaches production

Aug 6 v6.0.610 DEV Raised the maximum number of always-connected tunnels held open on desktop from 5 to 100

Aug 6 v6.0.611→613 DEV Began moving core connection-negotiation logic (state transitions, glare handling) to a shared internal engine that will also power future native apps, with no change to today's behavior

Aug 7 v6.0.613→614 DEV Continued the connection-negotiation migration: reconnect/backoff policy and tunnel-selection policy

Aug 7 v6.0.608→614 PROD The tunnel-capacity increase and the connection-negotiation migration reach production

Aug 7 v6.0.619 DEV Redesigned Business-tier funding: invited accounts must always be a standard tier, and transfers no longer mint any bonus, closing a possible abuse path

Aug 7 v6.0.619 DEV Built the interface for funding an existing account and for changing your own account tier at any time

Aug 7 v6.0.620 DEV Pre-created invite accounts must now change their temporary password the first time they log in

Aug 7 v6.0.621 DEV Fixed a rare boot-time race that could leave two screens visibly overlapping right after signing in

Aug 7 v6.0.622 DEV Fixed two more edge cases in the same boot-time race, including one that could leave you stuck on a broken screen after certain login or account-recovery paths

Aug 7 v6.0.622 DEV Fixed a bug where a contact's account tier was never actually saved after connecting, silently breaking tier-based features for that contact

Aug 8 v6.0.623 DEV Fixed inviting-and-funding an account silently failing to create the invite link when the funding amount exceeded the monthly limit

Aug 8 v6.0.623 DEV The forced password-change screen no longer re-asks for the password you just typed to log in

Aug 8 v6.0.624 DEV Redesigned pro-invite funding to transfer money only when the invited account is actually claimed, not when the invite is sent, so an unclaimed invite never wastes real money

Aug 8 v6.0.626 DEV Fixed a bug where a rejected funding transfer could leave the database connection in a stuck state, silently blocking other actions on the same account afterward

Aug 8 v6.0.627 DEV Fixed an insufficient-funds error message being invisible behind an open dialog, and made the funding-limit hint text easier to read

Aug 8 v6.0.628 DEV Closed a caching gap that had left the PDF viewer's support files unprotected from stale browser caching since the feature first shipped

Aug 8 v6.0.629 DEV Root-caused and fixed PDF thumbnails failing to render: the web server wasn't recognizing the PDF viewer's file type, and already-cached browsers needed a forced refresh to pick up the fix

Aug 8 v6.0.614→629 PROD A large batch reaches production: the new Business account tier and self-service tier changes, the forced password-change security feature for invited accounts, two boot-time display race fixes, and the PDF thumbnail rendering fix

Aug 8 — PROD Fixed non-English language links on the live site incorrectly redirecting visitors to the development server instead of the real site

Aug 9 v6.0.635 DEV Fixed wallet transfers never recording a transaction in either account's own statement history

Aug 9 v6.0.637 DEV "Solo P2P" mode is now a real guarantee in both directions: it also refuses incoming relayed connections, detects when two people have incompatible connection-privacy settings, and shows a clear message when that happens

Aug 9 v6.0.634→637 PROD The wallet-statement fix and the strengthened "Solo P2P" guarantee reach production

Aug 9 v6.0.641 DEV Failed message-attachment previews now show a plain file icon instead of a broken-image placeholder, and closed a caching gap that could serve a stale PDF viewer after an update

Aug 10 v6.0.642 DEV The "Solo P2P" clash message and the invite funding-limit hint are now translated into every supported language

Aug 10 v6.0.643→646 DEV Continued moving core connection-decision logic (identity verification, signal handling, reconnection) to the shared internal engine, with no change to app behavior

Aug 10 — DEV Fixed a rare bug where two contacts syncing at once could overwrite each other's retry signal, recoverable with a manual sync but not automatic

Aug 10 v6.0.638→647 PROD A batch of reliability fixes reaches production, including the retry-signal fix, the message-preview fallback icon, and full translation of the "Solo P2P" messages

Aug 10 v6.0.648 DEV Root-caused and fixed a real boot failure: a slow-but-working startup could get permanently stuck behind a false "could not start" error, and Retry could never help since it restarted the same losing race — the app now recovers automatically and gives itself more time after a slow attempt instead of repeating it

Aug 10 v6.0.647→648 PROD The boot-failure fix reaches production

Aug 11 v6.04.001 DEV Added anonymous, aggregate usage telemetry (connection type, message-size and frequency ranges, tunnel stability) — the server only ever stores bucketed counts, never a per-user or per-message record

Aug 11 v6.04.001 PROD The new usage telemetry reaches production

Aug 11 — PROD Fixed a gap where requests to part of the server were logged together with the visitor's IP address, despite that never being the intention — IP addresses are no longer recorded there

Aug 11 — DEV Fixed a bug where logging out and then logging back in with a 24-word recovery phrase, on the same device, could wrongly claim the account had never used it — no data was ever at risk, only the login check was wrong

Aug 11 v6.04.003 DEV Continued moving core connection-handling logic (detecting a self-connection, handling clock drift between devices) into the shared internal engine, with no change to app behavior

Aug 11 v6.04.005 DEV Fixed multi-line messages (blank lines, paragraph breaks) collapsing into a single run-on block when displayed

Aug 11 v6.04.001→005 PROD A batch of fixes reaches production, including the 24-word recovery-login bug and the multi-line message display fix

Aug 12 v6.04.006 DEV Continued restructuring core connection-handling code into smaller, focused modules, with no change to app behavior — verified under a live load test holding 74 simultaneous connections with no errors

Aug 12 v6.04.005→006 PROD The connection-handling engine rewrite, in progress since early August, is complete and reaches production

Aug 12 v6.04.007 DEV Added a sidebar indicator for messages from people not yet in your contacts, with guidance on how to reconnect with them

Aug 12 v6.04.008 DEV Continued strengthening message-mirroring reliability between your own devices, verified under live testing at over 10,000 messages with zero data loss

Aug 12 v6.04.009 DEV Fixed a rare bug where manually resetting the sync connection between your own devices could leave it reporting the wrong status afterward

Aug 12 v6.04.011 DEV Fixed a serious bug where a message in an unsupported future format could be silently replaced with a blank message when syncing between your own devices, instead of being preserved

Aug 12 v6.04.012 DEV Fixed a bug where manually resetting the sync connection between your own devices could leave it permanently stuck mid-sync

Aug 12 v6.04.006→012 PROD The message-mirroring reliability fixes above reach production

Aug 12 v6.04.013 DEV Fixed a bug where the notice warning about a P2P/relay connection mismatch could be dismissed by an unrelated background message before it was seen

Aug 13 — DEV Removed an old, never-actually-used experimental file-sync feature

Aug 13 — DEV Fixed a bug where a month-old, already-superseded build of the image/PDF metadata-removal feature was still being served instead of the corrected one

Aug 13 — DEV Closed a gap where a security check on outbound link previews had never actually run in automated testing

Aug 13 v6.04.019 DEV Invite links and pending contact requests now stay valid for 7 days, up from 24–72 hours

Aug 13 v6.04.019 DEV Fixed a bug where the "metadata removed" badge on a shared photo could show even when the removal hadn't fully succeeded

Aug 13 v6.04.019 DEV The pending-invite review notice in the sidebar no longer disappears if the list refreshes while you're deciding, and no longer freezes the app while waiting for your answer

Aug 13 v6.04.020 DEV Backend work on tracking relayed vs. direct connections more accurately, and on available connection-relay capacity

Aug 14 v6.04.012→020 PROD A batch of connectivity, privacy and reliability fixes reaches production, including the items above

Aug 14 v6.04.021 DEV Fixed a bug where messages to less-frequently-active contacts could sit undelivered for minutes with no error shown, because the app wasn't proactively reconnecting to them before sending

Aug 14 v6.04.026 DEV Reduced excessive internal logging that could interfere with diagnosing rare server issues under heavy load

Aug 14 v6.04.026 DEV Fixed a rare timing bug where opening the app in a way that triggered two simultaneous startups of the encryption engine could leave one session unable to send or receive messages

Aug 14 v6.04.027 DEV Added a visible password-length hint to the forced password-change screen, which could previously block users with short passwords with no explanation

Aug 14 v6.04.027 DEV Fixed unreadable dropdown-menu options in dark mode

Aug 14 v6.04.028 DEV Fixed a bug where switching away from the app immediately after opening it could incorrectly log the user out

Aug 14 v6.04.020→028 PROD The message-delivery fix, the encryption-engine race fix, and the three fixes above reach production

Aug 14 v6.04.032 DEV Added a safety limit to stop the app from silently reloading in an endless loop if a startup step ever fails

Aug 14 v6.04.032 DEV Hardened the login screen against a broken script layer submitting the form incorrectly

Aug 15 — DEV Fixed a bug that caused the installed iOS app to get stuck in an endless reload loop for some users, sometimes showing a blank screen

Aug 15 — DEV Fixed a related issue where, right after the reload loop was fixed, some users could land on an empty, unusable screen

Aug 15 v6.04.028→036 PROD The iOS installed-app reload-loop fix reaches production

Aug 15 — DEV Fixed a bug where logging into the installed app could unexpectedly trigger a file-download prompt instead of opening the app

Aug 15 — DEV Fixed a caching bug that could leave some users stuck on an outdated build of the installed app

Aug 15 — DEV Closed the last remaining translation gaps — every interface string is now available in all 41 supported languages for the first time

Aug 15 v6.04.036→041 PROD The remaining installed-app fixes and the full translation coverage above reach production

Aug 15 v6.04.043 DEV Significantly reduced remaining internal logging noise from rejected and invalid requests, and fixed a related memory-cleanup bug in the request rate-limiter

Aug 15 v6.04.045 DEV Redesigned the app's login screen and adopted a new shared typeface across the app, matching the rest of the Solo product family

Aug 15 v6.04.045 DEV Added a new default visual theme ("Solo") matching the shared family look, used automatically for new visitors with no saved preference — existing users keep whatever theme they already chose

Aug 15 v6.04.041→047 PROD The new default theme and shared visual redesign, plus the logging and reliability improvements above, reach production

Aug 16 v6.04.058 DEV Moved online-status updates onto the app's existing realtime connection, replacing a repeating background request that could produce unexplained failures for groups of users sharing one public internet address, as on mobile networks

Aug 16 v6.04.058 DEV Connection health is now confirmed by the server rather than inferred locally, so a silently dropped connection is detected instead of continuing to look healthy

Aug 16 v6.04.058 DEV Added anonymous, aggregate measurement of how much work is preserved when you switch away from the app and return, and how long recovery takes when something is lost

Aug 16 v6.04.058 DEV Mobile devices now hold up to 150 simultaneous peer connections, raised from 3, matching desktop

Aug 16 v6.04.047→058 PROD The presence and connection-reliability work above reaches production, along with the raised mobile connection limit

Aug 17 v6.04.059→064 DEV Fixed document and photo messages rendering with large amounts of empty space around their contents

Aug 17 v6.04.064 DEV Fixed a PDF with no preview image rendering as a tall empty box

Aug 17 v6.04.064 DEV A photo whose preview never arrives now shows an identifying row instead of a blank area

Aug 17 v6.04.058→064 PROD The document and photo message layout fixes reach production

Aug 17 v6.04.065 DEV Account type badges are now short text labels (ADM, PRO, BIZ, FUND) instead of icons, readable without opening a popover

Aug 17 v6.04.065 DEV Business accounts now show a badge — the tier previously displayed none at all

Aug 17 v6.04.064→065 PROD The new text account-type badges, including the previously missing Business badge, reach production

Aug 17 v6.04.067 DEV Migrated more of the connection-acceptance decision logic (handling multiple devices, stale connections, and self-connections) from JavaScript to the app's faster internal engine — no visible change

Aug 17 v6.04.065→067 PROD The connection-decision logic migration above reaches production

Aug 19 v6.04.068 DEV Fixed a connection-keepalive check that could wait past its intended deadline before detecting a dropped connection

Aug 19 v6.04.069 DEV Continued migrating connection-acceptance and reconnect-handling logic to the faster internal engine

Aug 19 v6.04.067→069 PROD The connection-keepalive timing fix and the continued connection-logic migration reach production

Aug 21 v6.04.070 DEV Fixed a bug where a network reconnect event (such as a device waking from sleep) could reset a connection attempt that had already started succeeding

Aug 21 v6.04.071 DEV Fixed sync between your own devices getting permanently stuck after a single failed reconnect attempt, instead of recovering on the next try

Aug 23 v6.04.074 DEV Fixed a bug that could permanently deadlock the connection between two of your own devices during their very first sync attempt

Aug 23 v6.04.075 DEV Fixed a second, related case of the same connection deadlock between your own devices, found while re-testing the first fix

Aug 24 v6.04.076 DEV Contact and message identifiers are no longer stored in plain form in the app's local database — applied throughout the app, closing several places where local storage could reveal who you talk to

Aug 25 v6.04.077→079 DEV Fixed a sync gap where a contact's Pro or Business badge could be missing on a device that only ever learned about them through your own multi-device sync, never a direct connection

Aug 25 v6.04.077→079 DEV Fixed message text becoming impossible to select and copy on desktop — caused by a mobile-only restriction being applied everywhere, plus a stray timer that could interrupt an in-progress selection

Aug 25 v6.04.077→079 DEV Added quick access to message "special touches" directly from the composer, previously reachable only from a separate menu

Aug 25 v6.04.077→079 DEV An invite link reused by a second person after the first pairing already completed now shows a clear message instead of hanging silently; also extended the wait window for a slow first-time acceptance to match the server's own limit

Aug 25 v6.04.069→079 PROD A large batch reaches production: the connection-reliability fixes above (own-device sync deadlocks and reconnect handling), contact and message identifiers no longer stored in plain form on this device, the Pro/Business badge sync gap, the desktop text-selection fix, quick access to special touches, and the invite-link reuse message

Aug 25 v6.04.081 DEV Fixed the Pro/Business tier badge sitting inconsistently far from a contact's name depending on how long the name was — now always placed right after the name

Aug 25 v6.04.079→081 PROD The tier-badge position fix reaches production

Aug 25 v6.04.082 DEV Fixed a real privacy gap in invite links: if a second, unreviewed person reused a link right after the intended contact's pairing completed, a race condition could let them complete pairing too, with no record of them on the inviter's side. Pairing is now bound to the specific person who was actually reviewed

Aug 25 v6.04.081→082 PROD The invite-link consent fix above reaches production

Aug 25 v6.04.083→085 DEV Closed a related invite-link gap: a leaked link could still be reused indefinitely by anyone who saw it, even after its first real pairing completed. A link now permanently stops accepting new requests after being delivered once