Since we are now up to Episode 7, was a bit wondering what was the past episode. From my memory back when I used to play jLT Open Beta test, it was sure so different when I started to play OGP Latale, like map layout were different at the start, and some layout of window were changed and such.
So here is the list of the Episode based on kLT Official Site (since I couldn't find the Japan Site) Do note that these Episode are not the same as OGP (because I have no idea but they just like to mess thing around with Episode which end up not releasing some contents)
Episode 1 – Iris Livier
1. Scenario Quest 2. Equipment up to Lv130 3. Craft System 4. Guild System 5. Combo System 6. Chatting Macro System 7. Changing Skill Learning System 8. Fashion Shop Open
Episode 2 – Atlantis
1. 2nd Class System 2. New Map Atlantis 3. PvP System 4. Abio Club 5. New Haunted Ship
Episode 3 – ChonPalm
1. Class Armor 2. New map Midgard, Big Apple, Aquarium, Bifrost, Kimaira Research. 3. Auction System 4. Chatting Room System 5. Guild Level System.
Episode 3.2 – Toad’s Island
1. New Map Toad’s Island 2. Item Decrease Level System 3. Ely version Fashion Shop 4. 10 Level Below Quest gives “!” mark 5. Auction System (update) 6. Craft System (update) 7. User Information Renewal
Episode 4 – Steel City
1. New Class Engineer, Miester 2. New Map Steel City, Factory 3. Marriage System 4. New System Summon Player (IR transport), Self Revive, Pets (Non-Ugly Egg), Party PvP
(Bongolle Train was shown in PV (and it's 3D too) so I believe Train was release at this update)
Episode 4.2 – Time Traveller
1. New Map Fairy Tail, Time Zone, etc. 1. Tonio Option Re-assemble 2. Fashion Shop Search Function