v0.9.0

0.9.0 (2026-11-02)

⚠ BREAKING CHANGES

• annotations: annotation anchors store location, not side; files written by pre-0.9 development builds with side fail schema validation.

Features

• add exact analytical solver and age controls (967fb2c)
• analytic: configurable limits and determinate progress (e4c7c4f)
• analytic: ignore set, phase and standby options, export, clearer results (b51f2f9)
• annotations: add pick-to-anchor and centre (7c2e405)
• annotations: add pick-to-anchor and centre (3f6096c), closes #56
• annotations: attach arrow ends independently, stop at the edge (925befe), closes #56
• annotations: drag an anchored note without breaking its link (ddb021f), closes #56
• annotations: keep anchor names in step with renames (ce34c7f), closes #56
• annotations: nudge anchored notes clear of obstacles; validate anchors (9eb9cfa), closes #56
• check .rbds files against a JSON Schema, and write only what differs from the defaults (296afb7)
• check .rbds files against a JSON Schema, and write only what differs from the defaults (838cf76), closes #4
• draw the diagram as SVG without Qt (f22c13e)
• draw the diagram as SVG without Qt (6460b1b), closes #4
• exact analytical solver (reliability and steady-state availability) (df4918d)
• hint at Spread when the Weak Link overlay is flat (0a74472)
• hint at Spread when the Weak Link overlay is flat (d1a8c7a), closes #65
• layout: make room for notes between stacked elements; fix book.html (0df5773), closes #56
• let cores be given back while a multi-core run is going (55d40b7)
• let cores be given back while a multi-core run is going (0eebfd2), closes #11
• say which time unit brings a too-large mean in range (8731318), closes #19
• set-up progress, and MCP support for large models (5d98d1d)
• set-up progress, MCP support for large models, cheaper per-event work (3b8c60f)
• show and edit annotation anchors in the GUI (4abc50e), closes #4
• show the flow a Failure Effects state delivers, in the GUI, CLI and MCP (1b7a40d)
• show the flow a Failure Effects state delivers, in the GUI, CLI and MCP (dd1cff5), closes #4
• warn about a hierarchy marker set as a capacity boundary (1c61570)
• warn about a hierarchy marker set as a capacity boundary (4a1bd8d), closes #4

Bug Fixes

• a pool's ESO/RSO/SLO flags loaded from .rbds read as set (1876cfd)
• a pool's ESO/RSO/SLO flags loaded from .rbds read as set (2faa1cf), closes #16
• analytic: review fixes, async results window, drop stream warning (b3a03d7)
• annotations: drag a text note by its body instead of editing (a4e9479)
• annotations: drag a text note by its body instead of editing (dbdff94), closes #64
• applying run options no longer re-lays the model out (cb792c6)
• applying run options no longer re-lays the model out (5e1ee0f), closes #4
• build: accept analysis names in any case and refuse unknown ones (80c8e9e)
• build: accept analysis names in any case and refuse unknown ones (873fc31), closes #73
• build: keep system capacity flags when experiment omits analyses (bed25ce)
• build: keep system capacity flags when experiment omits analyses (0653bda)
• collapse selection rewires both boundary sides atomically (a8253f1)
• collapse selection rewires both boundary sides atomically (65547b2), closes #72
• doctor display on Windows/macOS, a larger-unit hint for huge means, dependency docs (fdec940)
• experiment: accept analysis spellings, reject unknown ones (965c848)
• experiment: accept analysis spellings, reject unknown ones (a4e00bb), closes #73
• give the layout refine search a time budget (16e279e)
• give the layout refine search a time budget (f894f16), closes #4
• gui: keep deferred Data Tables within the mypy baseline (3bcc241)
• gui: keep standalone GUI wording free of legacy references (8528b86)
• gui: make large model opens linear and defer grid fill (17af9d1)
• gui: prompt for mission time on non-time-terminated models (cf68ee1)
• gui: sequence theme-change contrast prompts across model windows (481512e)
• gui: sequence theme-change contrast prompts across model windows (fce2bbc), closes #71
• gui: show the empty-results notice through the msgbox seam (9966e3f)
• gui: use saved model name in reports and PDF title block (e6b2845)
• gui: use saved model name in reports and PDF title block (d98ff86), closes #62
• harden analytic solver inputs, docs and GUI states (8718209)
• keep a time estimate through the importance measures (de84118)
• keep a time estimate through the importance measures (3c88f22), closes #3
• keep auto layout inside Raptor 7's canvas (924fefb)
• keep auto layout inside Raptor 7's canvas (a2f70de)
• keep build_model under the complexity limit (815eda8)
• let a run be cancelled, or time out, while the model is being set up (eca4a5e)
• let a run be cancelled, or time out, while the model is being set up (2f00f15), closes #15
• lint and type errors CI found (eb2ada9)
• MCP feedback from #4 (capacity metrics, runtime estimate, run -o, build_model hint) (4a9846d)
• mcp: allow paginated single-point-failures results (57deee4)
• mcp: allow paginated single-point-failures results (5872166)
• mcp: keep starting when a workspace model cannot be loaded (bf3b468), closes #60
• mcp: start even when a workspace model cannot be loaded (18e0554)
• never re-lay out a model on save or export; anchored annotations follow their element (3ca8cba)
• never re-lay out a model on save or export; let annotations follow their element (3dbf159), closes #4
• no crash refreshing the z-order buttons while the canvas is rebuilt (24fa0e3)
• no crash refreshing the z-order buttons while the canvas is rebuilt (870b8d3), closes #2
• point a whole .rbds file passed to build_model at rbds_text (708e000), closes #4
• raise the layout refine budget to 30 s, keep 10 s on the UI thread (b93d2e1)
• raptor doctor reports a native display on Windows and macOS (5e7f2e9), closes #8
• raptor run -o writes the summary to the output folder (b6272f3), closes #4
• read and write maintenance, sparing and the other API-named columns as .rbds fields (f98b0ee)
• read and write maintenance, sparing and the other API-named columns as .rbds fields (b7ef984), closes #4
• release: keep pre-1.0 breaking changes on the minor line (cb937ea)
• release: keep pre-1.0 releases on the minor line (f60193d)
• report an mcp SDK that is out of range instead of crashing on it (4ea0381)
• report an mcp SDK that is out of range instead of crashing on it (3fe3c13), closes #4
• report capacity-weighted availability and lost flow in the run summary (81e2af1), closes #4
• selectors: resolve Kind:name for named sections (d905d87)
• selectors: resolve Kind:name for named sections (c0973ff)
• show the capacity-weighted availability on the GUI's Capacity tab (196bd6e), closes #4
• stopping a multi-core run keeps the runs of chunks still in flight (ee5d936)
• stopping a multi-core run keeps the runs of chunks still in flight (e2daca2), closes #10
• time the runtime estimate's pilot with the outputs a real batch writes (3d91ea6), closes #4

Performance Improvements

• analytic: make series chains linear in the BDD (004ee57)
• build the State_change and Red_change comments from a registry of flagged blocks (d95a380)
• build the State_change and Red_change comments from a registry of flagged blocks (18b0831), closes #17
• cut the per-event cost that grew with the model size (9396873), closes #17
• keep an index of the current instant instead of re-sorting it every step (df86b4e)
• keep an index of the current instant instead of re-sorting it every step (589f849), closes #17
• keep set-up from being quadratic in the node count (0533cfa)
• keep set-up from being quadratic in the node count (067b853), closes #15
• load the model once per pool worker, not once per chunk (a8dfc26)
• load the model once per pool worker, not once per chunk (09013ae), closes #28
• touch only the capacity group's monitors after the first pass (3af8656), closes #17
• update capacity monitors in one pass, and only the capacity group's after the first (88a5b2b)
• update the capacity monitors in one pass (8222ad2), closes #17

Documentation

• align design note with implemented modules (29e50ed)
• an idle dependent breaks its path, and very large means (2188f3e), closes #20
• annotations: document arrow ends, make-room and offsets (cef5dec), closes #56
• canvas note -- the layout's 118.75 limit and why the bounds fix stacks on #33 (e12647f)
• cli: regenerate analytic man page and completions (d9ea154)
• design note on the canvas scale, grid and annotations (18dbe7d)
• design note on the canvas scale, grid and annotations (d338421), closes #4
• explain the pip commands in a virtual environment and Windows long paths (44ec6cb)
• explain the pip commands in a virtual environment and Windows long paths (8107ea5)
• how to model a block that never fails (ebe2997), closes #4
• key tips only appear on commands that have one (bf160be)
• key tips only appear on commands that have one (4f70de7), closes #66
• mcp: regenerate the tool reference (e754e9b)
• rebuild manual.html for the Importance tooltip (3f1a24c)
• regenerate manual-reference for the reworded tooltip (beb61ca)
• regenerate manual-reference.adoc for the Importance tooltip (8e579b6)
• regenerate manual.html for the analytical window text (de133de)
• revise the canvas scale note against the Raptor 7 source (b900b65)
• set the 0.9 codename to "Nine Nines and a Dream" (5763204)
• set the 0.9 codename to "Nine Nines and a Dream" (c64a1c4)

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Install

File	Platform
*-windows-setup.exe	Windows 10/11 x64 — double-click
*-windows-portable.zip	Windows — unzip, run raptor-studio.exe
*-macos-arm64.dmg	macOS 13+ Apple Silicon
*-macos-x64.dmg	macOS 13+ Intel
*-linux-amd64.deb	Debian/Ubuntu x64 — sudo apt install ./…deb
*-linux-x86_64.AppImage	Most Linux distros x64 — chmod +x, run

macOS (unsigned build): right-click RAPTOR Studio.app → Open → Open, or xattr -cr "/Applications/RAPTOR Studio.app".

Windows (unsigned build): SmartScreen may warn — More info → Run anyway.

Verify downloads with SHA256SUMS.txt. PyPI: pip install raptor-studio.