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Changelog

August 24, 2026

This one’s all about speed. Scrubbing the playhead is dramatically smoother, large comps render faster, and a long list of editing bugs got squashed along the way.

  • Dramatically smoother playhead scrubbing: After Effects’ playhead now keeps pace with your mouse instead of lagging behind and drifting after you release
  • Faster timeline and waveform rendering: large comps draw and scroll noticeably faster
  • Select All + Delete on a partially locked track: now deletes the selected components rather than just disabling their switches
  • Keyframe edits refresh on click-in: keyframe changes made directly in AE’s timeline now refresh in Railcut when you click back into the panel, rather than on hover
  • Alt+click selecting just the audio or video of an A/V clip, then Delete, now removes that component from the timeline instead of only muting or hiding it.
  • Fixed the vertical scrollbar thumb not scaling correctly past ~25 tracks.
  • Shift-scrubbing with snapping now lands After Effects’ playhead on the snapped frame.
  • Alt+slip / Alt+slide on an A/V clip no longer causes the untouched half to jump to track 1.
  • Ripple trims respect locked clips. Downstream clips can no longer be pushed on top of a locked clip.
  • Arrow keys, Home, and End during RAM preview now stop playback and move the playhead correctly instead of desyncing it.
  • Fixed a bug where a failed rolling edit on a J/L pair could corrupt AE’s undo history for the rest of the session.
  • Fixed rare cases where Add Edit on-the-fly or dragging from the Project panel could undo an unrelated edit.
  • Failed operations now show an error message and resync the timeline instead of failing silently.
  • If AE hiccups while Railcut reads the comp, the timeline keeps displaying instead of going blank.
  • Various other bug fixes and performance improvements

June 15, 2026

  • Linked Track Switching: a new toggle in the wrench menu, off by default. With it on, dragging one half of an A/V clip to a different track moves its linked partner the same number of tracks, previewed live during the drag.
  • Play / Pause is a rebindable shortcut: still Space by default, but it can now be reassigned in the shortcuts dialog, saves into presets, and comes across with the After Effects shortcut pull.
  • Fixed a crash and track shuffling when duplicating a layer in After Effects. The copy and the original no longer share one clip identity.
  • Fixed reversed clips (negative speed): trim limit indicators, slip, and audio waveforms now read the media correctly instead of collapsing the clip or dropping the waveform.
  • Fixed license storage on macOS writing to a doubled folder path. Existing licenses move themselves to the correct location on first launch; Windows was never affected.
  • Fixed deactivation leaving Railcut in Grace Period when the server had already released the license.
  • The Use a different key reset link now appears for every non-active license state, including Grace Period.

May 11, 2026

  • Unlink and relink clips: use the clip right-click menu or Ctrl+L to unlink or link an A/V pair.
  • Single-side A/V editing: hold Alt with most edit tools to act on only the video or audio side of an A/V pair
  • Out-of-sync indicators: linked pairs that are offset from each other show a sync badge with the amount of drift
  • Clip groups: group selected clips so they select and move together
  • Close Gaps: remove gaps in a selection or timeline section from the wrench menu
  • Blending Modes: change a clip’s blending mode from the right-click context menu
  • Keyboard shortcut persistence: custom shortcuts now save to disk and survive Railcut updates
  • Shortcut import/export: export a custom shortcut preset to JSON or import one from another machine
  • After Effects shortcut pull: Railcut can transfer compatible shortcuts from After Effects
  • Better Add Edit precedence: Ctrl+K prioritizes selected clips when a selection exists, then falls back to targeted tracks
  • Empty-state improvements: the wrench and bell button now display even when a timeline isn’t open
  • Footage panel in/out marks: dragging from the Project Panel now respects footage panel’s in/out ranges
  • Fixed stale license instance recovery so Railcut can recover from outdated activation IDs
  • Fixed linked A/V overwrite, paste, duplicate, trim, slip, slide, ripple, rate stretch, and blade edge cases
  • Fixed track assignment stability across undo/redo, comp switching, paste operations, and linked-pair edits

March 30, 2026

  • Tool shortcuts: editing tools can have keyboard shortcuts, and the active tool shortcut displays in the toolbar
  • Middle mouse button panning: horizontal and vertical timeline panning
  • Select Clip at Playhead (D): selects clips under the CTI on targeted tracks
  • Mark Selection (/): sets the comp work area in/out points to span the selected clips, matching Premiere’s behavior
  • Rename Selected Clip (Enter): inline rename for the selected clip
  • Precompose Clips: right-click selected clips to precompose them directly from the timeline
  • Double-click to open source: double-click a footage clip to open it in AE’s Layer panel; double-click a precomp to open it in the viewer
  • Selection sync: toggle in the Wrench menu to automatically sync the Railcut selection to AE layers; or use the push command for on-demand sync (Shift + G)
  • Still image duration: set the default duration for still images dragged onto the timeline (Settings → Preferences)
  • Separate keyframe line toggles: opacity and audio keyframe lines have independent visibility toggles
  • Waveform performance: major performance improvement for timelines with many clips
  • Live waveform updates: waveforms, keyframes, and markers shift live during ripple, slide, slip, and move drags
  • Live rubber band updates: waveform amplitude updates live while dragging rubber band handles
  • Source-accurate thumbnails: clip thumbnails use the source file’s native aspect ratio; vertical and square clips display with letterbox/pillarbox instead of being stretched to fit the comp
  • CTI scrub auto-scroll: the timeline scrolls while dragging the playhead near the canvas edges
  • Fixed Unicode username path bug affecting Windows users with accented characters in their system username
  • Fixed CTI scrub auto-scroll triggering too early; it now scrolls at canvas edges
  • Fixed inconsistent minimum track height across different display scaling settings
  • Fixed double-click opening the AE Footage panel instead of the Layer panel
  • Improved license activation error messages for SSL/network failures so corporate firewall and timeout errors show plain-English guidance

March 25, 2026