Here are the changes in the new Dota 2 7.08 patch.

Source

General Changes

• Wards now require a constant 2 hits to kill(both Observer and Sentry Wards). You need to simultaneously hit it to reward.
• The first tower or the Tier 1 armor aura increased ranging from 1-2.
• The base XP of the bounty runes are reduced from 25-0.
• The growth gold from bounty runes is increased from 2 per minute to 4 per minute.
• Roshan acquires 25% Status Resistance.
• Drafting time in All Pick matches is reduced from 30 to 25 seconds.

Item Changes

• Aeon Disk - health threshold is reduced from 80% to 70%.
• Battle Fury - non-hero units bonus damage is reduced from 60 to 50%.
• BKB - Cooldown is fixed to 70 seconds.
• Blink Dagger - Increased cooldown from 12 to 14 seconds.
• Enchanted Mange - increased mana restoration from 150 to 175.
• Faerie Fire - increased hp heal from 75 to 85.
• Force Staff - the time duration to reach the maximum distance is increased to 0.5 seconds.
• Hurricane Pike - the effect of force staff is carried since it is one of the recipes and cooldown increased from 18 to 23 seconds.
• Meteor Hammer - Cooldown is reduced from 40 to 28 seconds.
• Soul Ring* - the price of the recipe is increased to 200.
• Spirit Vessel - it's recipe's price is increased to 750.

Hero Changes

• Alchemist - Chemical Rage base attack is improved to 1.3/1.15/1
• Ember Spirit(Sleigh of Fist) - hero damage is increased to 25/50/75/100/
• Enchantress - base damage is reduced by 3.
• Jakiro - attack backswing is reduced from 0.5 to 0.3.
• Juggernaut(Blade Dance) - damage is reduced from 200% to 180%.
• Leshrac(Earth Split) - mana cost is reduced from 100/125/140160 to 80/100/120/140.
• Lina - Linas base intelligence is added by 3.
• Lion(Mana Drain) - applies slow to the target by 14/16/18/20%.
• Lycan(Shapeshift - increased cooldown from 120/90/60 to 130/105/80.
• Medusa - Mystic Snake's cast range is reduced to 700.
• Morphling - Morph cast range increased from 600 to 1000.
• Replicate - cast point is removed.
• Nature's Prophet(Wrath of Nature) -reduced cooldown to 70/65/60/
• Omniknight - degen aura is reduced to 275 range. Purification is also reduce to 400 range.
• Oracle - Fortune's End's mana cost is reduced from 110 to 75.
• Pangolier - Rolling Thunder's cooldown is increased to 70/65/60.
• ** Pudge** - rot's slow is reduced from 30% to 20/24/28 32%.
• Pugna - Life drain increased damage to 150/225/300. (Scepter on removes the cooldown).
• Shadow Fiend - Necromaster soul is reduced from 18/24/30/36 to 12/20/28/36.
• Shadow shaman - Shackle's damage reduced from 120/200/280/360 to 60/160/260/360. Ether Shock increased cooldown from 8 to 14/12/10/8.
• Tinker - base movement speed reduce from 305 to 290.
• Tiny - the cooldown of toss is increased from 8 to 11.
• Tusk - snowball can no longer cast when rooter or getting hold.
• Windranger - wind run mana cost reduced from 60 to 50.

References:

http://steamcommunity.com/app/570/discussions/0/1700541698686111644/
https://www.reddit.com/r/DotA2/comments/7umctt/gameplay_patch_708_discussion/
https://dota2-ru.gamepedia.com/Morphling/%D0%98%D0%B7%D0%BC%D0%B5%D0%BD%D0%B5%D0%BD%D0%B8%D1%8F
https://dota2.gamepedia.com/Morphling/Changelogs
https://ru.dotabuff.com/blog/2018-02-01-708-balance-update-quick-review
http://www.dota2.com/duelingfates/
http://liquipedia.net/dota2/Version_7.08