If you downloaded 1.0 you need to delete MagickaRevisited.esp from your data folder when installing 1.15. (If you downloaded 1.10, download 1.15 instead. 1.10 had the wrong MR esp.)
Because of the naming scheme change (which won't happen again) you will probably lose Augmented Flame/Frost/Shock 3 if you had any of them. You can readd them by opening the console with ~ and typing exactly:
help "Augmented" 4
to get the perk codes for use with player.addperk xxxxxxxx. The ids are xx0581e7 - Flame 3, xx0581eb - Frost 3, xx058201 - Shock 3.
Also enchanting boost from 1.0/vanilla is not retroactive. Old enchants will not benefit.

I looked around and tried out some of the various magicka system modifiers, but didn't like them nor the large number of files I had to use.
So I learned about all the various esp entries and made my own.
Also, if I'm a master level destruction mage, with robes instead of armor, and at least 8 (more like 20, that's almost half the reasonable number of perks [50] before leveling takes ages), I sure as hell expect to fry a damned town guard in two and a half seconds.
Overall, this makes magicka a viable (in my opinion) skillset instead of being a potion chugger or spellblade.

Changes:

Enchanting:
Enchants are about x1.6 as powerful as vanilla.

Magicka:
Base magicka cost changed from x0.65 to x1. (Spells cost about x1.54~ of vanilla)
NPC magicka cost changed from x0.5 to x1. (Vanilla NPC's originally had a large reduction in magicka cost as well.)
Magicka cost % reduction per skill level increased from 0.0025 to 0.0045. (at 100 skill from 25% magicka cost reduction to 45% reduction)
In-combat magicka regen multiplier increased from 0.33 to 1.

Destruction:
Novice:
Perk magicka reduction at 65%
Flames/Frostbite/Sparks base damage reduced to 5/sec.
Apprentice:
Perk magicka reduction at 60%
Increases destruction magic damage by 25%
Firebolt/Ice Spike/Lightning Bolt base damage reduced to 16.
Adept:
Perk magicka reduction at 65%
Increases destruction magic damage by another 35%
Expert:
Perk magicka reduction at 55%
Increases destruction magic damage by another 50%
Master:
Perk magicka reduction at 60%
Increases destruction magic damage by another 60% (x4 damage total)
Other:
Augmented Flames/Frost/Shock now 3 point perks, add +25%/+45%/+65%. (x3 damage with 3/3 augmented perks, x12 all destruction damage perks)
Rune limit increased to 8 up from 1.


Dual Casting changes. Use only one of these.
Note that they affect ALL trees dual casting, not just destruction. (candlelight/shield spells get duration boost, wards get strength boost, calm/etc get level affect boosts, and so on. Pretty much any buff gets a duration boost and any damaging/level cap affected(calm) thing gets damage/level cap boost.)

Changes in Powerful Dual Casting:

Dual casting effect increased from x2.2 to x6.66.
Dual casting time multiplier increased from x1 to x2.5. (dual casts take a longer amount of time to cast)
Dual casting magicka cost multiplier increased from 2.8 to 4.

Changes in Faster Dual Casting:

Dual casting effect decreased from x2.2 to x2.
Dual casting time multiplier decreased from x1 to x0.75. (dual casts take a shorter amount of time to cast)
Dual casting magicka cost multiplier decreased from 2.8 to 1.5.
Faster dual casting trades more impacts for less mana efficiency and requiring aiming more often. The damage outputs are roughly the same.


V1.00 -
Original mod.
V1.10 -
Moved dual-casting to separate files and rebalanced it.
Increased enchanting.
Rebalanced magicka costs and damage boosts.
V1.15 -
Fixed correct esp.