[JonasDov]

closes #1737
To release v4, it should be enough to remove all other existing changesets and keep only v4-major/minor/patch.
Until v4 is released for each new change we should:

• Create a changeset file for that change, so a new release is documented and release pr is created.
• Update MigrationGuide.md, README.md and v4-major/minor/patch changeset if applicable.

This is almost done, the only thing left is to update the performance section. I think it is a good idea to complete #1793 and #1569 before finishing this, as they will alter the performance results.

[grigasp]

This is good as a list of technical changes that were made. However, I think if I was a consumer and saw this huge list of changes I would get scared more than excited about the new stuff.

Any ideas how we could:

1. Expose the new features and improvements better, so anyone looking at the changelog document (or some other document) would want to upgrade?
2. Reassure consumers that migration is maybe not as painful as it might look like?

[JonasDov]

This is good as a list of technical changes that were made. However, I think if I was a consumer and saw this huge list of changes I would get scared more than excited about the new stuff.

Any ideas how we could:

1. Expose the new features and improvements better, so anyone looking at the changelog document (or some other document) would want to upgrade?
2. Reassure consumers that migration is maybe not as painful as it might look like?

Changed, have a look

[github-actions]

Tree-Widget Next benchmark

Benchmark suite	Current: e423fe8	Previous: 4d29129	Deviation	Status
models tree 50k 3D elements search > get search paths	577 ms	833 ms	-30.73%	✅
models tree 50k 3D elements search > get search paths (P95 of main thread blocks)	35 ms	53 ms	-33.96%	〰️
models tree 50k 3D elements search > load hierarchy from search paths	72167 ms	87485 ms	-17.51%	✅
models tree 50k 3D elements search > load hierarchy from search paths (P95 of main thread blocks)	30 ms	36 ms	-16.67%	〰️
models tree 50k categories > collect nodes	1577 ms	2439 ms	-35.34%	✅
models tree 50k categories > collect nodes (P95 of main thread blocks)	65 ms	95 ms	-31.58%	〰️
models tree 50k categories > validate initial visibility	2005 ms	2641 ms	-24.08%	✅
models tree 50k categories > validate initial visibility (P95 of main thread blocks)	143 ms	188 ms	-23.94%	〰️
models tree 50k categories > change visibility	146 ms	204 ms	-28.43%	✅
models tree 50k categories > change visibility (P95 of main thread blocks)	45 ms	56 ms	-19.64%	〰️
models tree 50k categories > validate changed visibility	1829 ms	2584 ms	-29.22%	✅
models tree 50k categories > validate changed visibility (P95 of main thread blocks)	0 ms	25 ms	-100%	〰️
models tree 50k 3D elements > collect nodes	26657 ms	34602 ms	-22.96%	✅
models tree 50k 3D elements > collect nodes (P95 of main thread blocks)	30 ms	100 ms	-70%	✅
models tree 50k 3D elements > validate initial visibility	1253 ms	1473 ms	-14.94%	✅
models tree 50k 3D elements > validate initial visibility (P95 of main thread blocks)	0 ms	0 ms	0%	🟰
models tree 50k 3D elements > change model visibility	59 ms	106 ms	-44.34%	〰️
models tree 50k 3D elements > change model visibility (P95 of main thread blocks)	0 ms	0 ms	0%	🟰
models tree 50k 3D elements > validate changed model visibility	1753 ms	2262 ms	-22.50%	✅
models tree 50k 3D elements > validate changed model visibility (P95 of main thread blocks)	0 ms	0 ms	0%	🟰
models tree 50k 3D elements > change category node visibility	333 ms	512 ms	-34.96%	✅
models tree 50k 3D elements > change category node visibility (P95 of main thread blocks)	28 ms	57 ms	-50.88%	〰️
models tree 50k 3D elements > validate changed category visibility	1364 ms	1765 ms	-22.72%	✅
models tree 50k 3D elements > validate changed category visibility (P95 of main thread blocks)	28 ms	114 ms	-75.44%	✅
models tree 50k 3D elements > validate per-model category override	1297 ms	1557 ms	-16.70%	✅
models tree 50k 3D elements > validate per-model category override (P95 of main thread blocks)	0 ms	0 ms	0%	🟰
models tree 50k 3D elements > change element visibility	39 ms	44 ms	-11.36%	〰️
models tree 50k 3D elements > change element visibility (P95 of main thread blocks)	0 ms	0 ms	0%	🟰
models tree 50k 3D elements > validate changed element visibility	1603 ms	2312 ms	-30.67%	✅
models tree 50k 3D elements > validate changed element visibility (P95 of main thread blocks)	29 ms	58 ms	-50%	〰️
models tree 50k 3D child elements with different categories > collect nodes	32478 ms	44093 ms	-26.34%	✅
models tree 50k 3D child elements with different categories > collect nodes (P95 of main thread blocks)	37 ms	78 ms	-52.56%	〰️
models tree 50k 3D child elements with different categories > validate initial visibility	1517 ms	2360 ms	-35.72%	✅
models tree 50k 3D child elements with different categories > validate initial visibility (P95 of main thread blocks)	0 ms	23 ms	-100%	〰️
models tree 50k 3D child elements with different categories > change visibility	52 ms	50 ms	4%	〰️
models tree 50k 3D child elements with different categories > change visibility (P95 of main thread blocks)	0 ms	0 ms	0%	🟰
models tree 50k 3D child elements with different categories > validate changed visibility	4215 ms	5683 ms	-25.83%	✅
models tree 50k 3D child elements with different categories > validate changed visibility (P95 of main thread blocks)	42 ms	90 ms	-53.33%	〰️
models tree 50k 3D child elements with different categories and excluded classes > collect nodes	32733 ms	44156 ms	-25.87%	✅
models tree 50k 3D child elements with different categories and excluded classes > collect nodes (P95 of main thread blocks)	37 ms	79 ms	-53.16%	〰️
models tree 50k 3D child elements with different categories and excluded classes > validate initial visibility	2140 ms	2496 ms	-14.26%	✅
models tree 50k 3D child elements with different categories and excluded classes > validate initial visibility (P95 of main thread blocks)	48 ms	77 ms	-37.66%	〰️
models tree 50k 3D child elements with different categories and excluded classes > change visibility	51 ms	52 ms	-1.92%	〰️
models tree 50k 3D child elements with different categories and excluded classes > change visibility (P95 of main thread blocks)	0 ms	0 ms	0%	🟰
models tree 50k 3D child elements with different categories and excluded classes > validate changed visibility	5834 ms	7063 ms	-17.40%	✅
models tree 50k 3D child elements with different categories and excluded classes > validate changed visibility (P95 of main thread blocks)	57 ms	106 ms	-46.23%	〰️
categories tree 50k subCategories search > get search paths	678 ms	955 ms	-29.01%	✅
categories tree 50k subCategories search > get search paths (P95 of main thread blocks)	67 ms	74 ms	-9.46%	〰️
categories tree 50k subCategories search > load hierarchy from search paths	3458 ms	5732 ms	-39.67%	✅
categories tree 50k subCategories search > load hierarchy from search paths (P95 of main thread blocks)	29 ms	60 ms	-51.67%	〰️
categories tree 50k subCategories > collect nodes	3361 ms	5539 ms	-39.32%	✅
categories tree 50k subCategories > collect nodes (P95 of main thread blocks)	24 ms	41 ms	-41.46%	〰️
categories tree 50k subCategories > validate initial visibility	1017 ms	1187 ms	-14.32%	✅
categories tree 50k subCategories > validate initial visibility (P95 of main thread blocks)	0 ms	26 ms	-100%	〰️
categories tree 50k subCategories > change visibility	326 ms	354 ms	-7.91%	〰️
categories tree 50k subCategories > change visibility (P95 of main thread blocks)	0 ms	0 ms	0%	🟰
categories tree 50k subCategories > validate changed visibility	1001 ms	1095 ms	-8.58%	〰️
categories tree 50k subCategories > validate changed visibility (P95 of main thread blocks)	26 ms	30 ms	-13.33%	〰️
categories tree 50k categories > collect nodes	75766 ms	90332 ms	-16.12%	✅
categories tree 50k categories > collect nodes (P95 of main thread blocks)	34 ms	65 ms	-47.69%	〰️
categories tree 50k categories > validate initial visibility	4679 ms	6274 ms	-25.42%	✅
categories tree 50k categories > validate initial visibility (P95 of main thread blocks)	78 ms	196 ms	-60.20%	✅
categories tree 50k categories > change visibility	624 ms	798 ms	-21.80%	✅
categories tree 50k categories > change visibility (P95 of main thread blocks)	43 ms	49 ms	-12.24%	〰️
categories tree 50k categories > validate changed visibility	4311 ms	5825 ms	-25.99%	✅
categories tree 50k categories > validate changed visibility (P95 of main thread blocks)	25 ms	37 ms	-32.43%	〰️
categories tree 50k categories and excluded classes > collect nodes	75293 ms	92505 ms	-18.61%	✅
categories tree 50k categories and excluded classes > collect nodes (P95 of main thread blocks)	36 ms	166 ms	-78.31%	✅
categories tree 50k categories and excluded classes > validate initial visibility	5076 ms	7330 ms	-30.75%	✅
categories tree 50k categories and excluded classes > validate initial visibility (P95 of main thread blocks)	129 ms	97 ms	32.99%	〰️
categories tree 50k categories and excluded classes > change visibility	633 ms	831 ms	-23.83%	✅
categories tree 50k categories and excluded classes > change visibility (P95 of main thread blocks)	54 ms	80 ms	-32.50%	〰️
categories tree 50k categories and excluded classes > validate changed visibility	5996 ms	8410 ms	-28.70%	✅
categories tree 50k categories and excluded classes > validate changed visibility (P95 of main thread blocks)	0 ms	33 ms	-100%	〰️
classifications tree 50k classifications search > get search paths	1480 ms	2316 ms	-36.10%	✅
classifications tree 50k classifications search > get search paths (P95 of main thread blocks)	124 ms	206 ms	-39.81%	✅
classifications tree 50k classifications search > load hierarchy from search paths	38408 ms	47346 ms	-18.88%	✅
classifications tree 50k classifications search > load hierarchy from search paths (P95 of main thread blocks)	0 ms	27 ms	-100%	〰️
classifications tree 50k classifications > collect nodes	9126 ms	16928 ms	-46.09%	✅
classifications tree 50k classifications > collect nodes (P95 of main thread blocks)	0 ms	48 ms	-100%	〰️
classifications tree 50k classifications > validate initial visibility	6100 ms	10738 ms	-43.19%	✅
classifications tree 50k classifications > validate initial visibility (P95 of main thread blocks)	2397 ms	7819 ms	-69.34%	✅
classifications tree 50k classifications > change visibility	117 ms	170 ms	-31.18%	✅
classifications tree 50k classifications > change visibility (P95 of main thread blocks)	0 ms	26 ms	-100%	〰️
classifications tree 50k classifications > validate changed visibility	2477 ms	3719 ms	-33.40%	✅
classifications tree 50k classifications > validate changed visibility (P95 of main thread blocks)	46 ms	77 ms	-40.26%	〰️
classifications tree 50k classifications and excluded classes > collect nodes	10162 ms	18363 ms	-44.66%	✅
classifications tree 50k classifications and excluded classes > collect nodes (P95 of main thread blocks)	27 ms	39 ms	-30.77%	〰️
classifications tree 50k classifications and excluded classes > validate initial visibility	5510 ms	12511 ms	-55.96%	✅
classifications tree 50k classifications and excluded classes > validate initial visibility (P95 of main thread blocks)	3197 ms	9846 ms	-67.53%	✅
classifications tree 50k classifications and excluded classes > change visibility	115 ms	161 ms	-28.57%	〰️
classifications tree 50k classifications and excluded classes > change visibility (P95 of main thread blocks)	0 ms	22 ms	-100%	〰️
classifications tree 50k classifications and excluded classes > validate changed visibility	2423 ms	3527 ms	-31.30%	✅
classifications tree 50k classifications and excluded classes > validate changed visibility (P95 of main thread blocks)	46 ms	53 ms	-13.21%	〰️

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