The PBE has been updated! As we continue the 7.22 PBE cycle, today's patch includes a new special loading screen for Urfwick, ranked reward summoner icons, health bar update, honor reward ward skins, and more.
1) Urfwick 2017
A special border for Urfwick was added, presumably for those who owned the skin originally & prior to his upcoming return in the limited blue essence store.

2) New Summoner Icon (For season awards mostly)
3) New Ward Skin (For season awards mostly)
4) Skin Twerk (Focus on Victorious Graves)
5) Health Bar Update

Read more information about health bar update below:
Preseason Healthbar Update - Rayven
6) Ascension returns for PBE testing
7) Continued Runes Reforged Testing & Changes
10/26 Changelist
Sorcery
Celerity
Movement speed increased from 3% to 4%
Scorch
Damage changed from [20-60] to [30-60]
Gathering Storm
AD values changed:
20m: from from 15AD to 14AD
30m: from 30AD to 29AD
40m: from 50AD to 48AD
50m: from 75AD to 72AD
60m: from 105AD to 101AD
Resolve Unflinching
Perseverance renamed Unflinching
Iron Skin
Armor increased from 4 to 5
Shields armor increase changed from 5% to 8%
Mirror Shell
MR increased from 4 to 7
Shields MR increase changed from 5% to 8%
Conditioning
Armor increased from 6 to 8
MR increased from 6 to 8
Second Wind
heal increased from 4% to [10 + 4%]
8) Balance changes
*NOTE*: The PBE is a testing grounds for new, tentative, & experimental changes. Be aware that what you see below may be relative to other changes earlier this cycle! These are not official notes.
Evelynn
Demon Shade (Passive)
[Tooltip reworded]
Passive reset after taking damage lowered from 4 seconds to 1.5 seconds.
Whiplash (E)
Damage changed from 30/45/60/75/90 flat damage to 50/60/70/80/90% tAD
Empowered damage changed from 60/80/100/120/140 flat damage to 90/105/120/135/150% tAD
Last Caress (R)
[New Effect] "If Last Caress kills a Champion or Epic Monster, 25% of it's cooldown is refunded and Evelynn regains Demon Shade."
Galio [Note: These changes were hotfixed to live on 10/26]
Winds of War (Q)
Initial damage ap ratio lowered from .9 to .8
Tornado AP ratio lowered from [3% Percent Max Health per 100 AP Per Tick] to [1% Max Health per 100 AP Per Tick (3% total)]
Lee Sin
Resonating Strike (Q2) Damage increased from 50/80/110/140/170 to 55/85/115/145/175
Tempest (E1) Damage increased from 65/100/135/170/205 to 70/105/140/175/210
Leona
[Meddler noted +20 base armor to Leona but not seeing this in game. Waiting for further context.]
Urgot
Corrosive Charge (Q) Slow lowered from 45/50/55/60/65% to 20/25/30/35/40%
9) Chromas changes
(Not much to update here)
Good old times i still miss the old league.
Galio's nerf is deserved and Celerity's little buff seems great for Jhin. They added a border for Urfwick? Well that's original I guess.
Basically I think these changes are quite good, though I need to have a look on Lee Sin's stats again.
Nice!