Meerk40t

A couple of fixes, usability improvements and new features:
- A quick-access to changing the dimensions of selected objects in the toolbar
- If you keep the Shift-button pressed when choosing a file to load, then MeerK40t will ask you where to position the loaded content instead of picking the default location (if you press Ctrl then the file content will be centered automatically)
- Resolution of a nasty bug under Linux that prevented the simulation window to display properly - the Linux build we have created so far was using rather old versions of Python and the GUI-toolkit for the sake of compatibility. We will *add* a more modern build shortly.
- User-defined hatches and wobbles: will take appropriate device defaults
- User defined buttons (early stages might still a bit rough around the edges)
- Dashed wobble as a workaround for the lack of support for stroke-types
- Per device camera background updates
- To simplify the frequent need to quickly eliminate a couple of elements from a burn without fundamentally changing the design, you can now set for all basic elements a flag (which is *not* stored and loaded, so only during runtime) that will hide them on the scene and that will exclude them from a burn operation. This flag can be set / unset either via the property panel:

or via the tree / element context menu:


What's Changed
* Bump version numbers by jpirnay in https://github.com/meerk40t/meerk40t/pull/2500
* Context aware coolant toggle by jpirnay in https://github.com/meerk40t/meerk40t/pull/2501
* Some Fluidnc tweaks by jpirnay in https://github.com/meerk40t/meerk40t/pull/2503
* Rounded rect fixes by jpirnay in https://github.com/meerk40t/meerk40t/pull/2507
* Grbl z support by jpirnay in https://github.com/meerk40t/meerk40t/pull/2504
* Tweaks for parametric editing by jpirnay in https://github.com/meerk40t/meerk40t/pull/2508
* Add position/size changer to statusbar panel by jpirnay in https://github.com/meerk40t/meerk40t/pull/2509
* Use device units in warning panel by jpirnay in https://github.com/meerk40t/meerk40t/pull/2511
* Cover race condition in simulation window by jpirnay in https://github.com/meerk40t/meerk40t/pull/2512
* Label display by jpirnay in https://github.com/meerk40t/meerk40t/pull/2513
* Sync with beta branch by jpirnay in https://github.com/meerk40t/meerk40t/pull/2514
* Circumvent blank simulation window under Linux with wxpython <= 4.1 by jpirnay in https://github.com/meerk40t/meerk40t/pull/2515
* Ask the user where to place the content of the file by jpirnay in https://github.com/meerk40t/meerk40t/pull/2516
* Load fixes by jpirnay in https://github.com/meerk40t/meerk40t/pull/2517
* Effects Toolbar Button and Default Effects Settings by jondale in https://github.com/meerk40t/meerk40t/pull/2506
* Extend variable display in crash log by jpirnay in https://github.com/meerk40t/meerk40t/pull/2518
* User buttons by jpirnay in https://github.com/meerk40t/meerk40t/pull/2519
* Allow suppression of config options for classroom sessions by jpirnay in https://github.com/meerk40t/meerk40t/pull/2520
* Grbl Tweaks by jpirnay in https://github.com/meerk40t/meerk40t/pull/2521
* User option for single node creation by jpirnay in https://github.com/meerk40t/meerk40t/pull/2522
* Basic dash wobble pattern by jpirnay in https://github.com/meerk40t/meerk40t/pull/2523
* Implement multiple camera timers for device specific background updates by jpirnay in https://github.com/meerk40t/meerk40t/pull/2524
* Add element hide status to suppress display & burning by jpirnay in https://github.com/meerk40t/meerk40t/pull/2525

New Contributors
* jondale made their first contribution in https://github.com/meerk40t/meerk40t/pull/2506

**Full Changelog**: https://github.com/meerk40t/meerk40t/compare/0.9.4020...0.9.4030

This release contains just some small fixes (including the availability of darwin and pi versions after some days of heavy compiling on a pi....).

What's Changed
* Sync ribbon button to armed state by jpirnay in https://github.com/meerk40t/meerk40t/pull/2494
* Add import of meerk40t operations.cfg to material manager by jpirnay in https://github.com/meerk40t/meerk40t/pull/2495
* Center image on import by jpirnay in https://github.com/meerk40t/meerk40t/pull/2496
* Scale down oversized images on import by jpirnay in https://github.com/meerk40t/meerk40t/pull/2497
* Add arm button to ribbonbar by jpirnay in https://github.com/meerk40t/meerk40t/pull/2498
* Fix grblcontrol by jpirnay in https://github.com/meerk40t/meerk40t/pull/2499


**Full Changelog**: https://github.com/meerk40t/meerk40t/compare/0.9.4.1...0.9.4020

While this release does not contain a lot of new functionalities, it includes quite a few fixes especially around the recognition and treatment of TrueTypeFonts for Vector-Text, the GUI display in Linux environments, an irritating logic flaw for classification, some fixes and enhancements around wobble effects.
New features include:
- Dragging 1: dragging an object around on the scene: so far you had to use the central move widget within the selection - now you can as well click on any area within the selected object, hold the mouse for a 1 second and then move the selection around.
- Dragging 2: the 'snap to element' option should feel snappier 😀 and behave more consistent
- SVG load: hidden layers (as used in inkscape) will be read and end up in the (unburnt) regmarks section. Just rightclick on these layers=groups and select 'Move back to elements' to have them editable again. Select 'Move to regmarks' in the elements context menu to disable them again.
- SVG load: the speed to read complex files should have been improved.
-  The burn repetition capability, i.e. having a single object on the scene that will be burnt multiple times at certain locations, that had been introduced with the placement feature, has been made powerful by easily defining a full grid of job repetitions
- Material Library: different materials require different operation settings for engraving and cutting. You can now maintain and organize different sets of operations for those different use cases and easily switch between them. There is even an import option to load such libraries from other programs like ezcad and lightburn. While the current beta does not yet include this feature, we aim to establish a community based set of settings to which you can contribute and from which you can benefit.
- Rotary support - this is still an area for improvements, but the minimal rotary support that was broken in early 0.9 has been reestablished
- Meerk40t will show a warning sign if it believes the current design could have issues - will still let you burn it, but it's ready to say 'Told you'
- The laser drivers use a smarter interpolation algorithm to translate curved lines into laser movements. This should feel snappier.
- We have started to tackle the long overdue task of creating better (and not outdated) documentation and make this available inside MeerK40t in a simpler fashion.
- There's a new experimental feature to translate images into a geometrical shape representing adjacent horizontal pixels by lines
- Small addition but useful: MeerK40t is recognising and using the external (ie system) clipboard to import images, files and text
- Introduction of some tips & tricks at startup

What's Changed
* Translation Check: Verify matched curly braces. by tatarize in https://github.com/meerk40t/meerk40t/pull/2424
* Add some basic op creation functions by jpirnay in https://github.com/meerk40t/meerk40t/pull/2426
* TTF Naming Table by tatarize in https://github.com/meerk40t/meerk40t/pull/2427
* Use ttffontinfo by jpirnay in https://github.com/meerk40t/meerk40t/pull/2428
* Enhanced vector fonts by jpirnay in https://github.com/meerk40t/meerk40t/pull/2430
* Fix parsing of ttf:cmaps by tatarize in https://github.com/meerk40t/meerk40t/pull/2433
* Implement cmap12, cmap13 by tatarize in https://github.com/meerk40t/meerk40t/pull/2434
* Debug: Widget Icon Viewer by tatarize in https://github.com/meerk40t/meerk40t/pull/2429
* Classification fixes by jpirnay in https://github.com/meerk40t/meerk40t/pull/2435
* Font fixes by jpirnay in https://github.com/meerk40t/meerk40t/pull/2432
* Translation updates by jpirnay in https://github.com/meerk40t/meerk40t/pull/2436
* Fonts tweaks and corrections. by tatarize in https://github.com/meerk40t/meerk40t/pull/2438
* Minor: Inspection fixes by tatarize in https://github.com/meerk40t/meerk40t/pull/2440
* Additional Ruida Work, TCP by tatarize in https://github.com/meerk40t/meerk40t/pull/2441
* Inspection fixes - Part 2 by tatarize in https://github.com/meerk40t/meerk40t/pull/2443
* Inspection fixes 2 by jpirnay in https://github.com/meerk40t/meerk40t/pull/2444
* Delay image processing until sliders have been released by jpirnay in https://github.com/meerk40t/meerk40t/pull/2445
* Minor Grammar Corrections Within Documentation by tatarize in https://github.com/meerk40t/meerk40t/pull/2447
* Add in geomstr `remove_0_length` by tatarize in https://github.com/meerk40t/meerk40t/pull/2449
* Font Tweaks by tatarize in https://github.com/meerk40t/meerk40t/pull/2439
* Avoid drawing artifacts for effects by jpirnay in https://github.com/meerk40t/meerk40t/pull/2450
* Close wobble path for closed outline by jpirnay in https://github.com/meerk40t/meerk40t/pull/2452
* Fix snap-behaviour during tool vector by jpirnay in https://github.com/meerk40t/meerk40t/pull/2451
* dnd of regmark nodes by jpirnay in https://github.com/meerk40t/meerk40t/pull/2453
* Add some ornamental wobble pattern by jpirnay in https://github.com/meerk40t/meerk40t/pull/2454
* Feature request: abort, singleinstance by jpirnay in https://github.com/meerk40t/meerk40t/pull/2455
* Translations by jpirnay in https://github.com/meerk40t/meerk40t/pull/2457
* Feature requests by jpirnay in https://github.com/meerk40t/meerk40t/pull/2458
* Linux tooltips by jpirnay in https://github.com/meerk40t/meerk40t/pull/2460
* 0.9.4 Final Checks by tatarize in https://github.com/meerk40t/meerk40t/pull/2459
* 0.9.4 final checks (Part 2) by tatarize in https://github.com/meerk40t/meerk40t/pull/2463
* Last minute changes by jpirnay in https://github.com/meerk40t/meerk40t/pull/2466
* Deal with nop segments by jpirnay in https://github.com/meerk40t/meerk40t/pull/2465
* Balor: Corfile Scene Configure (Partial) by tatarize in https://github.com/meerk40t/meerk40t/pull/2343


What's Changed - Beta 3
* Italian translations v17a + some additional by jpirnay in https://github.com/meerk40t/meerk40t/pull/2412
* Translations by jpirnay in https://github.com/meerk40t/meerk40t/pull/2415
* GRBL Tweak for Sending/Recving threads (could die without recovery) by tatarize in https://github.com/meerk40t/meerk40t/pull/2417
* Matman fixes + tweaks by jpirnay in https://github.com/meerk40t/meerk40t/pull/2418
* Further matman tweaks by jpirnay in https://github.com/meerk40t/meerk40t/pull/2419
* MWindow default window size by jpirnay in https://github.com/meerk40t/meerk40t/pull/2409
* Add component information to About WIndow by jpirnay in https://github.com/meerk40t/meerk40t/pull/2421
* Util Goto Vector by tatarize in https://github.com/meerk40t/meerk40t/pull/2416
* 0.9.4 Beta 3 Final Touches by tatarize in https://github.com/meerk40t/meerk40t/pull/2414
* Italian translations by betaeta by jpirnay in https://github.com/meerk40t/meerk40t/pull/2423

What's Changed - Beta 2
* Fix incomplete settings restoration by jpirnay in https://github.com/meerk40t/meerk40t/pull/2405
* Final Touches: 0.9.4 Beta 2 - Post 2 by tatarize in https://github.com/meerk40t/meerk40t/pull/2406
* Recognize device rename in device manager by jpirnay in https://github.com/meerk40t/meerk40t/pull/2322
* Update check by jpirnay in https://github.com/meerk40t/meerk40t/pull/2323
* Translations by jpirnay in https://github.com/meerk40t/meerk40t/pull/2324
* GRBL Connection Robustness. by tatarize in https://github.com/meerk40t/meerk40t/pull/2321
* Allow suppression of travel path by jpirnay in https://github.com/meerk40t/meerk40t/pull/2325
* Provide additional feedback by jpirnay in https://github.com/meerk40t/meerk40t/pull/2326
* 0.10.x+, Geomstr Backend, Phase 1 by tatarize in https://github.com/meerk40t/meerk40t/pull/2320
* Correct hatches for those lacking count values (2331) by tatarize in https://github.com/meerk40t/meerk40t/pull/2334
* Some layout adjustments by jpirnay in https://github.com/meerk40t/meerk40t/pull/2335
* Add `serial_exchange` command by tatarize in https://github.com/meerk40t/meerk40t/pull/2333
* Circumvent high userscale issue for panel icons by jpirnay in https://github.com/meerk40t/meerk40t/pull/2336
* Autoadvance wordlist in plan spool stage by jpirnay in https://github.com/meerk40t/meerk40t/pull/2339
* Rotary Corrections by tatarize in https://github.com/meerk40t/meerk40t/pull/2340
* Improve Rotary, Finish Coordinate Systems by tatarize in https://github.com/meerk40t/meerk40t/pull/2341
* Scene: Add in Ability to Scene Stack by tatarize in https://github.com/meerk40t/meerk40t/pull/2342
* Lihuiyu driver move position for firing by tatarize in https://github.com/meerk40t/meerk40t/pull/2344
* Italian translations by betaeta by jpirnay in https://github.com/meerk40t/meerk40t/pull/2345
* Execution Correction and Signal Crash Validation by tatarize in https://github.com/meerk40t/meerk40t/pull/2347
* Implement Numba Fast Dithers by tatarize in https://github.com/meerk40t/meerk40t/pull/2346
* Ruida Implementation Work by tatarize in https://github.com/meerk40t/meerk40t/pull/2353
* Material Manager by jpirnay in https://github.com/meerk40t/meerk40t/pull/2337
* Matman: saving + ezcad3 support by jpirnay in https://github.com/meerk40t/meerk40t/pull/2360
* RuidaControl - Bridge Mode. by tatarize in https://github.com/meerk40t/meerk40t/pull/2357
* Service Delegate Rotary by tatarize in https://github.com/meerk40t/meerk40t/pull/2355
* Ruida: Serial Connection by tatarize in https://github.com/meerk40t/meerk40t/pull/2362
* Placement improvements by jpirnay in https://github.com/meerk40t/meerk40t/pull/2361
* Italian translations by betaeta by jpirnay in https://github.com/meerk40t/meerk40t/pull/2363
* Allow sizing of elements with one dimension set to zero by jpirnay in https://github.com/meerk40t/meerk40t/pull/2366
* Fix missing parent bound invalidation on element move/scale by jpirnay in https://github.com/meerk40t/meerk40t/pull/2365
* Balor: Display input pins in config by jpirnay in https://github.com/meerk40t/meerk40t/pull/2356
* Additional information in Material Manager by jpirnay in https://github.com/meerk40t/meerk40t/pull/2364
* Settings backup by jpirnay in https://github.com/meerk40t/meerk40t/pull/2359
* Allow import of 3D-polylines by jpirnay in https://github.com/meerk40t/meerk40t/pull/2368
* Device.safe_label + Bug Fixes by tatarize in https://github.com/meerk40t/meerk40t/pull/2369
* Update Moshi Driver (Checks and Corrections) by tatarize in https://github.com/meerk40t/meerk40t/pull/2370
* Proper placement grid by jpirnay in https://github.com/meerk40t/meerk40t/pull/2367
* Clearer visual indicator that rotary mode is active by jpirnay in https://github.com/meerk40t/meerk40t/pull/2372
* Placement - tiling improvements by jpirnay in https://github.com/meerk40t/meerk40t/pull/2371
* Extended snap logic by jpirnay in https://github.com/meerk40t/meerk40t/pull/2373
* Add service/kernel console command applied to lifecycle objects by tatarize in https://github.com/meerk40t/meerk40t/pull/2375
* Speed up font rendering by jpirnay in https://github.com/meerk40t/meerk40t/pull/2377
* Use element dragging instead of selection rectangle after some time by jpirnay in https://github.com/meerk40t/meerk40t/pull/2378
* Format painter by jpirnay in https://github.com/meerk40t/meerk40t/pull/2376
* Vectorfont - fixes and poor man's kerning by jpirnay in https://github.com/meerk40t/meerk40t/pull/2379
* Effect Drag-and-Drop treatment correction. by tatarize in https://github.com/meerk40t/meerk40t/pull/2381
* Matman fix by jpirnay in https://github.com/meerk40t/meerk40t/pull/2382
* Advanced Ribbon Tool, Tool Modes by tatarize in https://github.com/meerk40t/meerk40t/pull/2384
* Add profiler option for meerk40t by tatarize in https://github.com/meerk40t/meerk40t/pull/2380
* Merger fixes by jpirnay in https://github.com/meerk40t/meerk40t/pull/2386
* Create .po file for pt_BR by tatarize in https://github.com/meerk40t/meerk40t/pull/2388
* GotoOperation Corrections by tatarize in https://github.com/meerk40t/meerk40t/pull/2390
* lock/unlock of the helper pane updates by jpirnay in https://github.com/meerk40t/meerk40t/pull/2389
* Geomstr simplify by jpirnay in https://github.com/meerk40t/meerk40t/pull/2392
* High dpi fixes by jpirnay in https://github.com/meerk40t/meerk40t/pull/2394
* BeamTable: Bentley Ottmann Intersections by tatarize in https://github.com/meerk40t/meerk40t/pull/2387
* Fontwelding by jpirnay in https://github.com/meerk40t/meerk40t/pull/2395
* Inkscape Layer-Support / Accelerate loading by jpirnay in https://github.com/meerk40t/meerk40t/pull/2397
* Update Simplify Code by tatarize in https://github.com/meerk40t/meerk40t/pull/2396
* Alarm reset by jpirnay in https://github.com/meerk40t/meerk40t/pull/2400
* 0.9.4-beta2 Fixes and Checks by tatarize in https://github.com/meerk40t/meerk40t/pull/2399

What's Changed - Beta 1
* Replace all SVGElement.Angle usages, expand units.angle by tatarize in https://github.com/meerk40t/meerk40t/pull/2221
* Effect Warp by tatarize in https://github.com/meerk40t/meerk40t/pull/2276
* Issue 2272: Open containing folder for file by tatarize in https://github.com/meerk40t/meerk40t/pull/2273
* Make m2nano controller window a bit more compact by jpirnay in https://github.com/meerk40t/meerk40t/pull/2274
* Consistent use of stroke attributes for all dxf path elements by jpirnay in https://github.com/meerk40t/meerk40t/pull/2279
* Add option to choose from registered hatches to toolbar by jpirnay in https://github.com/meerk40t/meerk40t/pull/2271
* Helper Window + Online Help by jpirnay in https://github.com/meerk40t/meerk40t/pull/2269
* Add in GRBL Interpolation tweaks. by tatarize in https://github.com/meerk40t/meerk40t/pull/2278
* Exif image rotation by tatarize in https://github.com/meerk40t/meerk40t/pull/2280
* GRBL: Imply GRBL home offsets by tatarize in https://github.com/meerk40t/meerk40t/pull/2270
* Isolated Kernel Translation Features by tatarize in https://github.com/meerk40t/meerk40t/pull/2281
* Fix clear/cls by jpirnay in https://github.com/meerk40t/meerk40t/pull/2283
* Cover 'path helloworld' crash by jpirnay in https://github.com/meerk40t/meerk40t/pull/2284
* Make confinement persistent by jpirnay in https://github.com/meerk40t/meerk40t/pull/2285
* Corrections to BeamTable. by tatarize in https://github.com/meerk40t/meerk40t/pull/2287
* GRBLHal compatibility corrections. by tatarize in https://github.com/meerk40t/meerk40t/pull/2288
* Fix `in_place` flag compatibility for image loading. by tatarize in https://github.com/meerk40t/meerk40t/pull/2289
* Add help topics by jpirnay in https://github.com/meerk40t/meerk40t/pull/2286
* Fix manual-update crash, if 'no, ty' was chosen by jpirnay in https://github.com/meerk40t/meerk40t/pull/2292
* Balor, Moshi, Interpolation algorithm change by tatarize in https://github.com/meerk40t/meerk40t/pull/2291
* Simplify geometric calls in wxmtree. by tatarize in https://github.com/meerk40t/meerk40t/pull/2297
* Add `Convert To Path` for Images by tatarize in https://github.com/meerk40t/meerk40t/pull/2298
* Galvo Improvements by tatarize in https://github.com/meerk40t/meerk40t/pull/2295
* Newly-Driver Changes, Interpolation by tatarize in https://github.com/meerk40t/meerk40t/pull/2290
* Tips at startup by jpirnay in https://github.com/meerk40t/meerk40t/pull/2282
* 0.9.3 Post 2 (Candidate) by tatarize in https://github.com/meerk40t/meerk40t/pull/2267
* Polygon tool by jpirnay in https://github.com/meerk40t/meerk40t/pull/2296
* Single-checkbox consent to interactive tips. by tatarize in https://github.com/meerk40t/meerk40t/pull/2299
* Arbitrary size correction for Linux by jpirnay in https://github.com/meerk40t/meerk40t/pull/2294
* Unify all line based tools by jpirnay in https://github.com/meerk40t/meerk40t/pull/2300
* Line-tool / add simplified point move by jpirnay in https://github.com/meerk40t/meerk40t/pull/2301
* Use hashvalue as local filename by jpirnay in https://github.com/meerk40t/meerk40t/pull/2305
* Fix dxf text and image import by jpirnay in https://github.com/meerk40t/meerk40t/pull/2302
* Fix BeamTable edge case. by tatarize in https://github.com/meerk40t/meerk40t/pull/2303
* GRBL Validation Restore, Tweaks for Validating GRBL devices by tatarize in https://github.com/meerk40t/meerk40t/pull/2309
* MKernel: Improve Signal Swap by tatarize in https://github.com/meerk40t/meerk40t/pull/2308
* tiger bug-reports by jpirnay in https://github.com/meerk40t/meerk40t/pull/2311
* Use only basic operation from default-operations by jpirnay in https://github.com/meerk40t/meerk40t/pull/2313
* Optimize Helper: Moves mouse query to Helper directly. Increasing Poll. by tatarize in https://github.com/meerk40t/meerk40t/pull/2310
* Allow pasting from system clipboard by jpirnay in https://github.com/meerk40t/meerk40t/pull/2314
* A couple of hatch fixes by jpirnay in https://github.com/meerk40t/meerk40t/pull/2315
* Geomstr: Binary Geometry Commands by tatarize in https://github.com/meerk40t/meerk40t/pull/2306
* Image Passthrough by tatarize in https://github.com/meerk40t/meerk40t/pull/2312
* Final Touches for 0.9.4 Beta 1 by tatarize in https://github.com/meerk40t/meerk40t/pull/2316
* Sync hatch-fixes by jpirnay in https://github.com/meerk40t/meerk40t/pull/2318
* Hatch fixes by jpirnay in https://github.com/meerk40t/meerk40t/pull/2319
* Catch shutdown runtime errors (hopefully) by jpirnay in https://github.com/meerk40t/meerk40t/pull/2317

**Full Changelog**: https://github.com/meerk40t/meerk40t/compare/0.9.3001...0.9.4000

This relase is mainly a bugfix release resolving bugs around the newly established material library and some other issues that were introduced with the last beta. Please update your version if you are already on the beta train.

What's Changed
* Italian translations v17a + some additional by jpirnay in https://github.com/meerk40t/meerk40t/pull/2412
* Translations by jpirnay in https://github.com/meerk40t/meerk40t/pull/2415
* GRBL Tweak for Sending/Recving threads (could die without recovery) by tatarize in https://github.com/meerk40t/meerk40t/pull/2417
* Matman fixes + tweaks by jpirnay in https://github.com/meerk40t/meerk40t/pull/2418
* Further matman tweaks by jpirnay in https://github.com/meerk40t/meerk40t/pull/2419
* MWindow default window size by jpirnay in https://github.com/meerk40t/meerk40t/pull/2409
* Add component information to About WIndow by jpirnay in https://github.com/meerk40t/meerk40t/pull/2421
* Util Goto Vector by tatarize in https://github.com/meerk40t/meerk40t/pull/2416
* 0.9.4 Beta 3 Final Touches by tatarize in https://github.com/meerk40t/meerk40t/pull/2414
* Italian translations by betaeta by jpirnay in https://github.com/meerk40t/meerk40t/pull/2423


**Full Changelog**: https://github.com/meerk40t/meerk40t/compare/0.9.3022...0.9.3030

- Fixing an issue where not all saved settings of an operation template were properly restored (notably the power setting in the newly established Material Library)
- Fixing erroneous translations leading to a crash for Brazil, Chinese and Italian

What's Changed
* Fix incomplete settings restoration by jpirnay in https://github.com/meerk40t/meerk40t/pull/2405
* Final Touches: 0.9.4 Beta 2 - Post 2 by tatarize in https://github.com/meerk40t/meerk40t/pull/2406

A couple of bugfixes that have occured since release start.
- Crash when toolbar became too small
- Download parameter catch in grbl settings
- Recovery from invalid section names in Material Manager

A new feature got in at the last minute: Meerk40t will show a warning sign if it believes the current design could have issues - will still let you burn it, but it's ready to say 'Told you'