Lazarus 2.0.0 release notes: what changed

Revision 1 to 2. Removed lines have a minus sign; added lines have a plus sign.

Old	New		Line
1	1		Lazarus 2.0.0 was released on 2019-02-05 [[http://forum.lazarus.freepascal.org/index.php/topic,44161.0.html release announcement]]
2	2
3	3		# LCL Interfaces Changes
4	4
5	5		# LCL Changes
6	6
7	7		### TScrollingWinControl ([[TForm]], [[TScrollBox]], [[TFrame]])
8	8
9	9		- ScreenToClient and ClientToScreen are now calculated without scrollbar offset. Done for Delphi compatibility.
10	10
11	11		### Support for mouse wheel horz scrolling
12	12
13	13		Added TControl events for horizontal mouse wheel moving (special mice with horz scroll buttons for PC, and modern mice for Mac). OnMouseWheelHorz, OnMouseWheelLeft, OnMouseWheelRight. Events are used in some non native LCL components (TreeView, UpDown, SpinEdit). Native components should handle horz scrolling already.
14	14
15	15		### Compiler defines to exclude some graphics support
16	16
17	17		Added flags to exclude support for some graphics formats to create smaller applications:
18	18
19	19		- -dDisableLCLGIF
20	20		- -dDisableLCLJPEG
21	21		- -dDisableLCLPNM
22	22		- -dDisableLCLTIFF
23	23
24	24		### TCustomImageList / TImageList
25	25
26	26		- the image list now supports multiple resolutions of one image. See [[TImageList\|Multiple-resolution TImageList in Lazarus 1.9 and newer]] for more details. As a result all LCL controls support High-DPI glyphs on Windows+Linux and Retina on Mac without any additional code.
27	27		- every LCL control that supports ImageList has now a new ImagesWidth property to decide what custom width at 96 PPI (100% scale) is to be used. Example: TToolBar.Images/.ImagesWidth, TListView.LargeImages/.LargeImagesWidth, .StateImages/.StateImagesWidth.
28	28		- set the TCustomImageList.Scaled=True property to let the image list automatically pick up the right resolution for your control.
29	29
30	30		### TSpeedButton, TBitBtn
31	31
32	32		- New properties Images, ImageIndex and ImageWidth. With them full ImageList support was added.
33	33		- no need to save the same Glyph in LFM all over the application
34	34		- automatic high-DPI image handling
35	35
36	36		### TWinControl.DoubleBuffered, .ParentDoubleBuffered and TApplication.DoubleBuffered
37	37
38	38		- Note: DoubleBuffered is a LCLWin32-only feature
39	39		- Old behavior: DoubleBuffered wasn't properly implemented and it was forced True
40	40		- New behavior:
41	41		- A Delphi-compatible DoubleBuffered/ParentDoubleBuffered concept was created (it is equal to the Font/ParentFont concept).
42	42		- The LCL has the TApplication.DoubleBuffered extension over Delphi that allows you to set form's default DoubleBuffered value globally for the whole application (set Application.DoubleBuffered before creating the first form). The value is then applied to all controls on the form with ParentDoubleBuffered:=True.
43	43		- DoubleBuffered is True by default unless in remote session (this is different to Delphi where DoubleBuffered is False by default).
44	44		- If you need one specific control to be DoubleBuffered:=False even for Application.DoubleBuffered:=adbDefault, make sure you set control.DoubleBuffered:=False and .ParentDoubleBuffered:=False.
45	45
46	46		### TListView
47	47
48	48		Added CustomSort method like in Delphi.
49	49
50	50		### TTreeView
51	51
52	52		- Implemented HotTrack property (show blue underline for item under cursor).
53	53		- Implemented auto-scrolling up/down during drag-drop (when mouse reaches the edge of treeview).
54	54
55	55		### FilterOptions in filter controls
56	56
57	57		Base class for filter controls TCustomControlFilterEdit has new property FilterOptions, which is set of such flags:
58	58
59	59		` TFilterStringOption = (fsoCaseSensitive, fsoMatchOnlyAtStart);`\
60	60		` TFilterStringOptions = set of TFilterStringOption;`
61	61
62	62		Two flags are implemented for 3 filter controls in LazControls: TListFilterEdit, TListViewFilterEdit, TTreeFilterEdit.
63	63
64	64		### Advanced menus Assign
65	65
66	66		- Supported TMenuItem.Assign(TMenuItem): this copies all props of menuitem.
67	67		- Supported TMenu.Assign(TMenu): this copies all items with all nested subitems from one menu to another (TMainMenu, TPopupMenu).
68	68
69	69		### TPageSetupDialog
70	70
71	71		- TPageSetupDialog: added Margin* and Units properties.
72	72		- Big rework of Unix TPageSetupDialog, it is now complete like it's on Windows (on Windows it was native, on Unix - emulation).
73	73
74	74		# IDE Changes
75	75
76	76		- several High-DPI IDE improvements and retina support on Cocoa
77	77		- Delphi Attributes: Find declaration, parameter hints, \$modeswitch prefixedattributes.
78	78		- The IDE parses the custom compiler options for the fpc switch -FN\<namespaces\>, to define the default namespaces, so you can omit the namespaces in the uses sections.
79	79		- [[pas2js]] support:
80	80		- New IDE package [[lazarus pas2js integration\|pas2jsdsgn]] (not installed by default):
81	81		- You can create a browser or nodejs webapplication
82	82		- on 'Run starts the webapp in your webbrowser
83	83		- pas2js settings are automatically fetched, same as fpc settings
84	84		- quickfixes work with pas2js messages
85	85		- added quickfix for fpc message "inherited method is hidden": add modifier override, overload, or reintroduce shortcuts.
86	86		- added designer menu item to hide icons for components like TOpenDialog. Option: Show non visual components
87	87		- extended filter for the identifier completion window - include identifiers containing prefix. (Settings: IDE Options -\> Codetools -\> Identifier Completion -\> Sorting -\> Include identifiers containing prefix.) See <https://bugs.freepascal.org/view.php?id=32974>.
88	88		- the identifier completion window includes also text (words) from the currently opened units. It can be disabled or set-up in IDE Options -\> Codetools -\> Identifier Completion -\> Include words
89	89		- the Publish Project/Package feature and GUI window was revamped. Now all project/package member files are included automatically. More files can be added using a filter. The directory structure is maintained even if some files are in directories "above" the main directory.
90	90		- the "New Component" window and user interface is improved. It also now supports 3 icons for different resolutions.
91	91		- the Run -\> Compile many Modes... feature now remembers its previously selected modes.
92	92		- the Search -\> Procedure List... window now remembers the state of its filter buttons.
93	93
94	94		## Editor
95	95
96	96		- Added new "smart move cursor" moving commands to editor mappings. They introduce word jumping positions both at word starts and ends. They are useful as alternative Ctrl+Left/+Right/+Shift+Left/+Shift+Right key
97	97		- Added Goto/Toggle bookmark submenu to toolbar.
98	98
99	99
100	100		Ctrl-b pops up "goto bookmark" list, with location for each bookmark. Ctrl-Shift-b pops up "toggle bookmark" list.
101	101
102	102		- Sublime like handling of selection with right/left navigation keys. Remove selection and keep caret at ex-boundary of selection. To activate check both: "Caret skips selection" and "Caret left/rigt clears selection (no move)". See [mantis 26477](https://bugs.freepascal.org/view.php?id=26477)
103	103		- More options to fine tune outline colors
104	104
105	105		## Debugger
106	106
107	107		- Auto closing of the asm window, if it was opened by breaking at a none source line. <https://bugs.freepascal.org/view.php?id=27800#c109463>
108	108		- Dragging selected identifier from source editor to watches window, to create a watch
109	109
110	110		### LLDB based Debugger (New)
111	111
112	112		The main target for this debugger is the Mac environment, which comes with a pre-installed lldb. For other platforms the use of the GDB based debugger is highly recommended.
113	113
114	114		The LLDB debugger depends on the availability and correct function of the lldb executable.
115	115
116	116		- Alpha: LLDB based debugger for MacOs (no code-signing required)
117	117
118	118
119	119		This is a raw LLDB wrapper. All watches must be lldb compatible. This may require C-style expressions entered into the watch window.
120	120
121	121		This debugger is experimental and provided "as is".
122	122
123	123		- Beta: LLDB + FpDebug based debugger for MacOs (no code-signing required)
124	124
125	125
126	126		This is the recommended LLDB based debugger.
127	127
128	128		To use the lldb based debugger:
129	129
130	130		Open the IDE and install the package "LazDebuggerFpLLdb"
131	131
132	132		- It should be in the list of available packages, but if not it is in components/lazdebuggers/lazdebuggerfplldb
133	133		- Make sure to use the one with "Fp" in the name. (There also is LazDebuggerLLdb, but it is not as good.)
134	134		- Restart the IDE.
135	135
136	136		Go to Tools \> Options \> Debugger
137	137
138	138		- In the "debugger type" dropdown, you should find and select "LLDB debugger (with fpdebug)"
139	139		- The edit below this (where you normally have the path to gdb), should be changed to the path of lldb.
140	140
141	141
142	142		(lldb comes with the tools from Apple; and as such it is already codesigned by Apple).
143	143
144	144		In case of problems please see: <http://forum.lazarus-ide.org/index.php/topic,42869.0.html>
145	145
146	146		### GDB based Debugger
147	147
148	148		GDB Debugger new options
149	149
150	150		- Added option "FixStackFrameForFpcAssert" to workaround fpc wrong frame pointer (display correct line after assert failed)
151	151		- Added option "FixIncorrectStepOver" to workaround "step over" issues experienced on some platforms (step-over acts like step-in) <http://forum.lazarus-ide.org/index.php/topic,44121>
152	152		- Added option "AssemblerStyle": ATT vs Intel
153	153		- Added option "DisableStartupShell": Required on MacOs.
154	154		- Added more size limits for data evaluation (avoid errors, timeouts and extremely slow responses)
155	155
156	156
157	157		Some users may experience a small speed gain, when setting both of the "...LengthForStaticArray" values to an equal value, and both of the "...ValueMemLimit" to an equal value (the mem and length may differ,this has no effect)
158	158
159	159		- MaxDisplayLengthForStaticArray: Similar to existing "MaxDisplayLengthForString". This should apply to static array, but it is up to gdb which types it applies it to.
160	160		- MaxLocalsLengthForStaticArray: The same, but applied while getting values for the locals window, and the function parameters show in the stack window. Should be more restrictive.
161	161		- GdbValueMemLimit: For all types. Do not evaluate values, if gdb would need more memory. Setting this to big may crash gdb. Big values may also lead to slow response times (several minutes during which the IDE would be blocked)
162	162		- GdbLocalsValueMemLimit: For locals and stack.
163	163
164	164		- DebugServer: Added "target-download" if remote supports it.
165	165
166	166		# IDE Interfaces Changes
167	167
168	168		- Added FormEditingHook.SaveComponentAsPascal, which stores a designer form as Pascal statements using TCompWriterPas. You have various options to define the format and it tells you what units are needed for the Pascal code. There is an example adding a designer menu item to copy the Pascal statements to the clipboard examples/pascalstream/CopyAsPasPkg/copyaspasdemounit1.pas.
169	169
170	170		- Added interface class TLazCompilationToolOptions with a Command and CompileReasons. Used in CompilerOptions.ExecuteBefore and .ExecuteAfter.
171	171
172	172		# Components
173	173
174	174		### TOpenGLControl
175	175
176	176		- New property Options of type set, currently with ocoMacRetinaMode as the only member. If set, ocoMacRetinaMode determines that the OpenGL controls will use retina support (high resolution mode).
177	177		- Control can use Qt5 widgeset now, Qt4 is also fixed for modern OpenGL contexts.
178	178
179	179		### TAChart
180	180
181	181		- The new TExpressionSeries and TExpressionColorMapSeries plot mathematical functions at design-time.
182	182		- TLineSeries has a new property "ColorEach" which can be used to color the line segments individually.
183	183		- TCubicSplineSeries has a new property "SplineType" which allows to select between the "natural" and the "monotone Hermite" splines (the latter avoiding overshoot of the interpolation).
184	184		- TAreaSeris has a new property "Banded" which suppresses painting of the bottom layer of stacked areas and makes the series look like a band or a stack of bands.
185	185		- The new property "MarkDistancePercent" of TPieSeries can be used, for example, to center a label within its pie for all chart sizes.
186	186		- TLineSeries, TCubicSplineSeries, TBSplineSeries and TFitSeries now can display error bars.
187	187		- The TFitSeries fitting engine was extended to be able to exclude specific parameters from fitting and to do a statistical analysis of the fit results (error estimates of the determined fit parameters, confidence limits, goodness of fit).
188	188		- TBarSeries has new property "MarkPositionCentered" which allows to center series marks within each bar. Available also for TAreaSeries where it works accordingly. NOTE: In intermediate trunk versions and some of the release candidates, this effect could be achieved partly by using option lmpInsideCenter of TMarkPositions - this option has been dropped now.
189	189
190	190		### TCustomEdit
191	191
192	192		- Qt5 widgetset native implementation of TextHint property, Qt4 uses emulated TextHint.
193	193
194	194		# Changes affecting compatibility
195	195
196	196		## Installer
197	197
198	198		### Debian package fpc was renamed to fpc-laz
199	199
200	200		This about the packages provided by the Lazarus team on sourceforge.
201	201
202	202		- Old: fpc_3.0.4-3_amd64.deb, fpc_3.0.4-3_i386.deb
203	203		- New: fpc-laz_3.0.4-1_amd64.deb, fpc-laz_3.0.4-1_i386.deb
204	204		- Reason: avoiding name clash with Ubuntu/Debian repository package "fpc"
205	205		- Remedy: adapt your scripts
206	206
207	207		Note, that the fpc-src package keeps its name, as the Ubuntu/Debian package is fpc-source, so there is no name clash here.
208	208
209	209		## LazUtils
210	210
211	211		## LCL incompatibilities
212	212
213	213		### TToolBar children ignore Align
214	214
215	215		Controls placed within TToolBar cannot be aligned with the Align property.
216	216
217	217		- Old behavior: The Align property of TToolBar children was taken into account.
218	218		- New behavior: The Align property is ignored.
219	219		- Reason: It caused endless alignment loops when the control's size was changed by code in Create.
220	220		- Remedy: use a parent container for TToolBar and align the controls within this container.
221	221
222	222		### TCustomComboBox.ReadOnly was deprecated
223	223
224	224		- Old behavior: When True, only items from the list are accepted, by direct selection from the list or AutoComplete.
225	225		- New behavior: it does nothing and will be removed.
226	226		- Reason: Delphi-compatibility, confusing naming, WS compatibility (different behavior on Win32/Qt/Gtk)
227	227		- Remedy: Use extended styles for the same feature.
228	228
229	229		### Predefined clipboard format pcfDelphiBitmap was removed
230	230
231	231		- Old behavior: The enumeration TPredefineClipboardFormat contained an element pcfDelphiBitmap which once had to be introduced due to streaming differences of bitmaps between Delphi and LCL.
232	232		- New behavior: pcfDelphiBitmap has been removed. (Rare) code relying on exact count and position of the elements of this enumeration will fail.
233	233		- Reason: No longer needed and causing trouble in clipboard access.
234	234		- Remedy: None - revisit your code.
235	235
236	236		### TEdit.Action visibility lowered to public
237	237
238	238		- Old behavior: TEdit.Action was published.
239	239		- New behavior: TEdit.Action is now public.
240	240		- Reason: Delphi compatibility.
241	241		- Remedy: set Action in code.
242	242
243	243		### [[TControl]].ScaleFontsPPI, .DoScaleFontPPI parameter change
244	244
245	245		- Old behavior: No AToPPI parameter
246	246		- New behavior: AToPPI parameter was added
247	247		- Reason: font scaling problem [Issue \#32882](https://bugs.freepascal.org/view.php?id=32882). This change will be merged to 1.8.1
248	248		- Remedy: fix parameters
249	249
250	250		### MouseEntered deprecated/missing
251	251
252	252		- Old behavior: No warning on using MouseEntered
253	253		- New behavior: Warning: Symbol "MouseEntered" is deprecated: "use MouseInClient instead"
254	254		- Reason: Delphi compatibility
255	255		- Remedy: use property MouseInClient instead
256	256
257	257		### TCustomImageList.Add method
258	258
259	259		- Old behavior: the image got sliced if too big or extended if too small.
260	260		- New behavior: the image is scaled to all resolutions in the image list.
261	261		- Reason: Image List now supports multiple resolutions.
262	262		- Remedy: use AddSliced (if the image consists of several icons to be added) or AddSlice (if one image from a custom rect has to be added - also rect outside the image is supported).
263	263
264	264		### TBitBtn.Glyph in combination with TBitBtn.Kind
265	265
266	266		- Old behavior: The Glyph property was filled with a valid bitmap when the Kind property was set to a different value from bkCustom.
267	267		- New behavior: The Glyph property is empty.
268	268		- Reason: TBitBtn now supports image list with multiple resolutions. The Glyph (TBitmap) doesn't support multiple resolutions and thus cannot be used anymore to define the TBitBtn image.
269	269		- Remedy: if you need the image for a specific TBitBtn.Kind get it directly from the LCLGlyphs property defined in ImgList.
270	270
271	271		### TCustomTreeView.OnChanging event: Node parameter
272	272
273	273		- Old behvior: The parameter Node passed to the OnChanging event points to the currently selected node. This is not compatible with Delphi which has the destination node here.
274	274		- New behavior: The parameter Node passed to the OnChanging event is the node which will be the selected node after the node-changing operation has completed.
275	275		- Reasons:
276	276		- The operation can be aborted by setting "AllowChange" to false. For this decision, knowledge of the node going to be selected is helpfull, at least more helpful than knowledge of the node to be left which still can be accessed as TreeView.Selected at this point. The old behavior does not tell the new node.
277	277		- The new behavior is compatible with Delphi
278	278		- Remedy: If old OnChanging handlers refere to the parameter Node replace Node by TreeView.Selected.
279	279
280	280		### TCustomDialog properties Width and Height visibility lowered to public
281	281
282	282		- Old behaviour: Width and Height were published.
283	283		- New behaviour: Width and Height are public.
284	284		- Reason: Delphi compatibility.
285	285		- Remedy: set the properties in code.
286	286
287	287		### No LCL Application exception dump
288	288
289	289		- Old behavior: In case of an exception a dump was automatically written with [[DebugLn]] (e.g. to a console).
290	290		- New behavior: There is no automatic exception dump any more.
291	291		- Reason: The LCL should not emit debugging info by default.
292	292		- Remedy 1: Add the LCLExceptionStackTrace unit to the uses clause of any of your units.
293	293		- Remedy 2: To enable LCLExceptionStacktrace globally for all projects, create a new "Additions and Overrides" entry in "Stored in IDE" for "#project" target with the contents "-FaLCLExceptionStacktrace" (see screenshot below). (The drawback of this approach is that this will now also be used for console applications, so they won't compile unless you uncheck the addition in Compiler Options.)
294	294
295	295		### No default LazLogger
296	296
297	297		- Old behavior: LazLogger was registered by default by the LCL.
298	298		- New behavior: LazLogger is not registered any more, so there is an empty logger (LazLoggerBase) used with no output.
299	299		- Reason: The LCL should not register any logger by default - the user has to define if he wants to use the logger and what logger he wants to use.
300	300		- Remedy 1: Add the LazLogger unit to the uses clause of any of your units.
301	301		- Remedy 2: To enable LazLogger globally for all projects, create a new "Additions and Overrides" entry in "Stored in IDE" for "#project" target with the contents "-FaLazLogger" (see screenshot below). (The drawback of this approach is that this will now also be used for console applications, so they won't compile unless you uncheck the addition in Compiler Options.)
302	302
303	303		### Screenshot for LCLExceptionStackTrace and LazLogger Additions and Overrides
304	304
305		-	~~<figure>~~
306		-	~~<img src="AdditionsOverridesExUnits.png" title="AdditionsOverridesExUnits.png" />~~
307		-	~~<figcaption>AdditionsOverridesExUnits.png</figcaption>~~
308		-	~~</figure>~~
	305	+	![](/wiki-images/9/96/AdditionsOverridesExUnits.png)
309	306
310	307		### TCustomTabControl setting TabIndex or PageIndex by code
311	308
312	309		- Old behavior: setting TabIndex or PageIndex by code would invoke a call to CanChangePageIndex/CanChange
313	310		- New behavior: setting TabIndex or PageIndex by code will not invoke CanChangePageIndex/CanChange. As a result OnChanging is not called in this scenario.
314	311		- Reason: Delphi compatibility.
315	312		- Remedy: set nboDoChangeOnSetIndex in Options (this option is not available in Delphi), call OnChanging in you own code when changing TabIndex/PageIndex, or move the code in OnChanging (or an overridden CanChangePageIndex/CanChange) to another event (or method) if applicable.
316	313
317	314		### TCustomGrid: The var parameter ABitmap in event OnUserCheckBoxBitmap used to be preassigned with default bitmap, but now it is nil
318	315
319	316		- Old behaviour: You could draw directly to ABitmap in OnUserCheckBoxBitmap event.
320	317		- New behaviour: You have to create a bitmap yourself and assign it to ABitmap parameter in OnUserCheckBoxBitmap event.
321	318		- reason: this is var parameter and its proper usage has always been this way.
322	319		- remedy: change code to provide the bitmap and assign it to ABitmap parameter in code of OnUserCheckBoxBitmap.
323	320
324	321		More information in [bugreport 35085](https://bugs.freepascal.org/view.php?id=35085).
325	322
326	323		## Components incompatibilities
327	324
328	325		### LazControls: TSpinEditEx no longer inherits from TCustomFloatSpinEditEx
329	326
330	327		- Old behavior: TSpinEditEx inherited from TFloatSpinEditEx.
331	328		- New behavior: Both TSpinEditEx and TFloatSpinEditEx now inherit from a common (generic) base class: TSpinEditExBase. As a result testing for "is TCustomFloatSpinEdit" now returns False.
332	329		- Reason: support for Int64 values in TSpinEdit (Double does not have enough precision to cover the Int64 range). Also makes for cleaner code.
333	330		- Remedy: test for the appropriate (base) class instead.
334	331
335	332		### TAChart: Reticule-related properties deprecated
336	333
337	334		- Old behavior: The reticule could be used to display a crosshair cursor in the chart.
338	335		- New behavior: The reticule will be removed because the crosshair cursor is included in the more versatile charttools.
339	336		- Reason: Remove duplicate features.
340	337		- Remedy: Attach a TChartToolset to the chart, add a DatapointCrosshairTool to the toolset and adjust its properties.
341	338
342	339		### TAChart events On\[After\\|Before\]Draw\[Background\\|BackwallWall\] deprecated
343	340
344	341		- Old behavior: These events could be used for custom-painting of the chart background or the chart data rectangle background.
345	342		- New behavior: These events will be removed.
346	343		- Reason: The events have a parameter Canvas to paint on. TAChart, however, supports additional drawing backends which do not have a canvas.
347	344		- Remedy: Use the new events On\[After\\|Before\]CustomDraw\[Background\\|Backwall\] which get the currenty used drawer as a parameter. For drawing use the corresponding drawer methods.
348	345
349	346		### TAChart: The TCubicSplineOption `csoDrawFewPoints` is removed.
350	347
351	348		- Old behavior: The CubicSplineSeries required at least 4 data points for drawing. In case of a TCubicSplineSeries with less data points a polygon was drawn as a replacement using the `BadDataPen` if the option `csoDrawFewDataPoints` was active; if this option was not set the series was not drawn at all.
352	349		- New behavior: After fixing the cubic spline interpolation in a local version if NumLib's ipf unit it is possible to draw splines also for less than 4 data points. Old code using the `csoDrawFewDatapoints` option will not compile any more.
353	350		- Reason: The old behavior was a workaround for a NumLib bug.
354	351		- Remedy: Don't use `csoDrawFewPoints` any more.
355	352
356	353		### TAChart: Other properties removed that had been marked as deprecated for a long time
357	354
358	355		- The following table lists the removed properties/procedures/functions along with their replacements:
359	356
360	357		\| removed \| use instead \|
361	358		\|----\|----\|
362	359		\| property `TChartTitle.Font` (unit TAChartAxisUtils) \| `TChartTitle.LabelFont` \|
363	360		\| property `TCustomChartSeries.ShowInLegend` (unit TACustomSeries) \| `TCustomChartSeries.Legend.Visible` \|
364	361		\| method `TFuncSeries.GetFitEquationText` (unit TAFuncSeries) \| `TFuncSeries.EquationText` \|
365	362		\| method `TChart.DrawOnCanvas` (unit TAGraph) \| `TChart.PaintOnCanvas` \|
366	363		\| property `TChartLegend.Margin` (unit TALegend) \| `TChartLegend.MarginX` \|
367	364		\| event `TLineSeries.OnDrawPointer` (unit TASeries) \| `TLineSeries.OnCustomDrawPointer` \|
368	365		\| class `TSerie` (unit TASeries) \| `TLineSeries` \|
369	366		\| class `TLine` (unit TASeries) \| `TConstantLine` \|
370	367		\| property `TZoomDragTool.Proportional` (unit TATools) \| `TZoomDragTool.RatioLimit`, set to `zlrProportional` \|
371	368
372	369		## IDE incompatibilities
373	370
374	371		# Previous release notes
375	372
376	373		---
377	374		From the Free Pascal wiki, page "Lazarus 2.0.0 release notes", as it stood on 2021-10-11 after a change by Kai Burghardt, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).
378	375		Category: Lazarus
379	376		Category: Release Notes

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