Follow the changes.

Level 20 Talent Song of the Siren Cooldown Reduction increased from 20s to 25s

Now provides evasion for Naga Siren on her own

Evasion per Naga changed from 8% to 4.9% + 0.1% per level

Now always a basic ability for Naga Siren

Base Movement Speed decreased from 320 to 315

Removed Special Reserve innate ability

Level 15 Talent -5s Blinding Light Cooldown replaced with +90 Blinding Light Damage

Level 15 Talent -2s Chakra Magic Cooldown replaced with +30% Spirit Form Bright Speed Bonus

Level 20 Talent +200 Chakra Magic Mana replaced with +10% Solar Bind Magic Resistance Reduction

Level 20 Talent +10% Spirit Form Movement Speed Bonus replaced with +15s Spirit Form Duration

New innate ability. Passive, can't be leveled up

Keeper of the Light gains +1 movement speed for every 2.5 Intelligence. Whenever Keeper of the Light moves 300 distance, he leaves behind light that allows him to see in 400 range for 3 seconds

Cooldown rescaled from 18/16/14/12s to 19/16/13/10s

Mana Restore increased from 90/160/230/300 to 105/170/235/300

Cast Range increased from 400/500/600/700 to 500/575/650/725

Knockback distance changed from 400 to knocking back to the edges of the effect radius, but a minimum knockback distance is 175

Min distance is used for enemies near the edge of AoE

No longer grants bonus movement speed percentage

Now increases movement speed bonus of Bright Speed by 50% while active

Removed Wellspring innate ability

Level 10 Talent Strength increased from +7 to +8

Level 25 Talent Relocate Cast Delay Reduction increased from 1.5s to 2s

New innate ability

Io always has bonus Outgoing Damage Amp which linearly scales with its health, reaching a maximum of 5% + 0.5% per level at 100% Health. At the same time, Io has Health Restoration and Healing Amplifications which also linearly scale with its health, but reach a maximum of 5% + 0.5% per level at zero Health

Now also provides 35/60/85/110 Attack Speed and 8/10/12/14% Spell Amplification to Io and any tethered Allies

Removed Lurker innate ability

Level 10 Talent +6 Visage and Familiars Attack Damage replaced with +6 Visage and Familiars Base Damage

Level 10 Talent +4 Lurker Max Stacks replaced with -1s Soul Assumption Cooldown

Level 20 Talent Soul Assumption Damage Per Charge increased from +25 to +30

Now innate ability. Active

Visage gains flying movement and 12% bonus movement speed for 20s. Upon attacking or casting, he loses both effects, but he and his familiars gain 10% attack damage bonus for 2 seconds

Mana Cost decreased from 115 to 50

Cooldown changed from 45s to 45.75s - 0.75s per level

Upgraded with Aghanim's Scepter

Increases bonus movement speed by 12%, bonus damage by 10%, bonus damage duration by 2s, and flight duration by 10s. While flight is active, Silent as the Grave grants invisibility to Visage and his familiars

Invisibility for Visage and each familiar are not connected

Cooldown decreased from 130/120/110s to 120/110/100s

Familiar Health rescaled from 500/600/700 to 450/600/750

Duration changed from 15s + 2.5s per level up to 12.5s + 2.5s per level

Effective values are not changed

Stacks now have independent durations and don't refresh previous ones

Cooldown increased from 10/8/6/4s to 14/12/10/8s

Mana Cost increased from 20 to 25/30/35/40

Cast Range is now Slark's attack range + 50

Stack Restoration Steal increased from 2/4/6/8% to 4/8/12/16%

Stack Regen Steal increased from 2/4/6/8 to 4/8/12/16

Stack Speed Steal increased from 2/4/6/8 to 4/8/12/16

Now also modifies incoming healing

As a result of Health Restoration changes

Level 10 Talent Stone Gaze Bonus Physical Damage increased from +10% to +12%

Level 15 Talent Mystic Snake Cooldown Reduction increased from 3s to 4s

Level 15 Talent +8% Split Shot Outgoing Damage replaced with +1 Gorgon's Grasp Volley

Level 20 Talent +1 Gorgon's Grasp Volley replaced with +12% Split Shot Outgoing Damage