The minimap's walls and fences now line up with its icons and dots on phones and scaled interfaces - they used to sit a few tiles south-east of where they really are;
Players and NPC's in the middle their own movement no longer jump when the map reloads around you as you walk;
Long game messages like the Spring cleaner's disassembly results now show in full instead of being cut off at 200 characters - only messages too long for the game client itself get shortened with "...";
Chat messages full of symbols in friends chat, clan chat and public chat - including ones relayed from the Discord Help channel - no longer garble the game for the players reading them;
Floating messages over your backpack no longer squeeze an extra line of text over the edge of their box;
Floating messages over players and NPCs now sit above their life points bar, head bars, prayer and skull icons and overhead chat, and grow upwards instead of covering their head;
Big ground effects, like the fire of TzKal-Zuk's Igneous Rain, no longer disappear while part of them is still on your screen;
Right-click menus no longer close by themselves when the game frame refreshes;
Chat messages containing "<" are no longer cut short when they're too long for one message;
Combat
Being saved from death by the Defence cape or a Soul phylactery no longer ends your boss fight or loses you the kill - Vorago and the Flesh-hatcher used to treat you as dead;
The Defence cape's perk now works like RS3's Sign of life - it only saves you from a hit that would kill you, instead of also triggering at 10% life points and wasting its hourly cooldown;
Unavoidable boss deaths, like standing under Vorago's landing or being pushed off his final platform, can no longer be survived with the Defence cape or a Soul phylactery;
Telos's So Much Power now lands at most 90% of your base life points instead of your boosted maximum - a Powerburst of vitality now properly halves it;
Every attack that hits for a share of your life points - TzKal-Zuk's Jad, Vorago, Nex, Zamorak, slayer monsters without protection, Daemonheim bosses and traps, Pyramid Plunder snakes and more - now uses your base life points, so bonus life points from gear, prayers or a Powerburst of vitality no longer make it hit harder;
Juvenile boulder crabs on Wendlewick's beach now have their RS3 life points, damage and animations;
Dungeon rats and rats now have attack, block and death animations;
Bomb spiders on the Araxxor's acid path now always walk towards you instead of 50/50 running, so you can outrun them before they burst;
Summoning & Related
The summoning orb and the familiar and pet tabs have been fully remade - familiars and pets now share one follower tab, with hover effects, tooltips and click sounds on every button;
The follower tab shows your familiar's life points, special move points and time left, with buttons to cast its special move, attack, renew, call, dismiss and interact;
You can now store and take familiar scrolls and give items to your beast of burden straight from the follower tab;
Your beast of burden's items can now be viewed right inside the follower tab - drag items in and out of it, drag them onto the ground to drop them, or use Store all and Take all;
Examine now works on items inside your beast of burden;
Legendary pets now have their own ability buttons in the follower tab - scavenging, free super-compost, send to bank, high-alchemy, the pickup whitelist and their growth look;
Legendary pet scavenging can now be switched off and back on from the follower tab;
Baby legendary pets no longer scavenge items - scavenging now starts at the adolescent stage;
The legendary pet scavenging settings now read "Stone/wood spirits", as they always picked up both;
Familiars and pets now talk with their own species' chathead animations in every dialogue instead of human faces;
The follower tab's chathead is now animated, and your familiar looks sad during its last minute;
Pets without a chathead of their own now show their full body in dialogues and the follower tab;
The Ripper demon's special move is now correctly called Death From Above;
The summoning orb's left-click option is now picked from a list in the follower tab, and pets remember their own choice separately from your familiar's;
The follower tab can switch the summoning orb between showing summoning points and special move points;
The summoning orb's globe now lights up while you have a familiar or pet out;
The pet tab's hunger bar, which never changed, is gone - growing pets still show their growth;
Your follower's tab now stays put after logging in or changing the game layout, instead of being replaced by the Squeal of Fortune tab;
Dismissing a familiar from its tab now always asks for confirmation first;
The familiar timer in the buff bar now shows the correct time left after logging back in;
The Friendly Familiar perk message now only shows when you summon a familiar, not every time you log in;
Using a summoning scroll on a Daemonheim familiar now tells you it cannot store scrolls;
Summoning a familiar and casting its special move scroll now give Summoning XP, matching RS3;
The arctic bear, reborn phoenix, spirit pigs and nihils now fight with their proper combat stats, and they, the dreadfowl, granite crab and ravenous locust can now attack in PvP;
38 combat familiars that fought with placeholder stats now have their RS3 life points, max hits, attack styles and animations;
The beaver's Multichop special is now used on a tree - the beaver chops up to 3 logs from it for you;
The compost mound's Generate Compost special is now used on a compost bin and fills it with 15 buckets of ready compost, with a 10% chance of supercompost;
The hydra's Regrowth special is now used on one tree stump in a tree patch, which grows back at once, instead of regrowing every stump on every patch;
The spirit war pig can now use Bacon Blast on its target, and fires stored Bacon Blast scrolls on its own in combat;
Buttons that need a backpack item - a legendary pet's send to bank, high-alchemy and whitelist, and item special moves like Winter Storage - now open your backpack, just like High Level Alchemy;
Items dragged out of your beast of burden in the follower tab now follow your mouse across the screen;
Legendary pets now show their full body in the follower tab and in dialogues, like RS3, instead of another creature's head;
A legendary pet's Look button now only offers the growth stages your pet has reached;
The side tab stone of the follower tab now shows a Summoning icon and reads "Familiar" or "Pet" while your follower's tab is open in it;
The Squeal of Fortune and Production stones now show their icons on the Classic and Modern layouts too;
Invention
Manufactured components can now be found by disassembling every RS3 source - smithed +2 to +5 gear, Mk. 2 to Mk. 5 eternal magic shortbows, primal crossbows, ore boxes, wood boxes and blood, soul and omni talismans and tiaras;
Disassembly now uses RS3's own material chances for every item;
The Master Inventor perk now also boosts uncommon and rare materials on items using RS3's material chances;
Death talismans now give Manufactured components at 0.8% (down from 7%), law talismans at 1.6% (up from 1%);
Elite Dungeons
Every ED4 miniboss can now drop 4-6 slivers of pain, power or strength on its own, like RS3 - each sliver is 1/100 from most minibosses, 1/111 from Desha and Mazera, 1/53 from the Denizen of Infernus and 1/300 from the Cerberus Juvenile;
The ED4 minibosses' rare drop table now matches RS3's latest rates - each sliver is now 1/500 (1/278 with a lucky charm), up from 1/571;
Slivers, onyx dust, large spiky rune salvage and hydrix bolt tips from the ED4 rare and lucky charm tables can now roll their full RS3 amounts;
Slivers of pain, power and strength, crystal chaos, living remnants and the Zamorakian sigil now show up in the drop viewer's search, along with every ED4 miniboss and monster that drops them;
ED3 skeletons and the ED1 Death Lotus rogues now show their lucky charm drops in the drop viewer's search;
Ground Items
Trying to pick up Stealing Creation items with a full backpack no longer takes your points;
A Vorago maul piece you couldn't pick up because of a full backpack is no longer left behind when the fight moves on;
Trying to pick up your gatestone or the group gatestone with a full backpack in Dungeoneering no longer breaks its teleport;
Area Loot no longer takes one game tick per item - quickly clicking several items now loots them all together in the order you clicked, and they vanish from the list as soon as you click them;
Area Loot with a full backpack now shows a single "need more space" message instead of one per item;
Items can now be dropped by dragging them out of your backpack onto the game screen - items you'd destroy or release ask or release just like their right-click option;
Hunter
Searching the bush at the end of a jadinko's tracks now only tells you if something is hiding there - attack it with a noose wand in your backpack or tool belt to catch it, just like RS3;
Camouflaged jadinkos can no longer be caught once your juju hunter potion has worn off - drink another and attack the bush again;
Creatures discovered while skilling in Menaphos now announce themselves in your chatbox;
Jadinkos in the Herblore Habitat now only need the plants and feature they're attracted to, just like RS3 - your other patches can be left empty, though a dead or diseased plant will still scare them off;
TzKal-Zuk
The Igneous Rain now shows its safe slice - the fire fills every other slice of the arena like RS3's, instead of covering the whole floor;
After the grip lets go you now have 1.2 seconds to reach the safe slice before the fire burns, and when the safe slice moves on, the old one stays safe for 2.4 more seconds;
Geothermal Burn now hits once every 1.2 seconds for all of its stacks and stops the moment it ends - no more burn hitsplats every tick, or burning on after a Ket-Zek dies or you leave;
Geothermal Burn now stacks up to 5 times;
TzKal-Zuk's Quake now shows all of its eruptions as he slams the ground, and they only start to burn 1.8 seconds later;
Missed or fully prayed TzekHaar-Ket-Zek attacks no longer add Geothermal Burn, and missed TzekHaar-Kih hits no longer drain your prayer and stats;
TzekHaar killed by Igneous Vengeance, disciples dying with their Mej and exploding Volatile TzekHaar-Hur no longer count as your kills;
Igneous TzekHaar now show their barrier again after a disciple's shield wears off, and stunning an already stunned Igneous TzekHaar-Hur renews its weakness;
In hard mode the lava wall no longer starts the moment a challenge ring opens;
Fixes
Fixed Linza sometimes being invisible and stuck on your tile - Barrows brothers now rise next to their sarcophagus instead of on top of you;
Dairy cows can be milked again all over the world, including the prized dairy cow in Lumbridge and the cow in Zanaris;
Milking a cow with a backpack full of empty buckets no longer stops straight away;
A revenant cyclops now spawns in the Forinthry Dungeon;
A mugger now spawns near the Edgeville lodestone;
The large dragonkin statue outside the Effigy Incubator on Anachronia can now be observed, and its laboratory door now tells you it is sealed instead of saying you can't reach it;
Teleports to an upper floor, like the Ardougne Castle thieving teleport, now always land you inside on the exact spot instead of sometimes floating you in the air outside the building;
Teleports and other random landings on the ground floor no longer put you on the other side of a wall, fence or moat;
Getting stunned while pickpocketing now hits for RS3's 3% of your base life points - it was about 10 times too low;
The boats to Dragontooth Island, Braindeath Island and Keldagrim sail again - boarding one used to do nothing and stop you from using any other boat or ship until you logged out;
Solomon's General Store no longer takes your coins for spins your account can't receive, a Prime aura you already own or items that don't fit in your backpack;
Buying 5, 10 or 25 Bonds in Solomon's General Store when you can't afford them all now buys as many as you can afford - it used to say you didn't have enough coins;
Rockertunities and Archaeology time sprites no longer put a hint arrow over the rock or hotspot - like RS3 you follow their sparkle and glow, and they no longer replace your Dungeoneering party's mark arrow;
Seren spirits, fire spirits, divine blessings, chronicle fragments and other skilling spirits no longer show a hint arrow - they appear with their message, sound and timer just like RS3;
The Runespan's yellow wizard no longer shows an arrow the moment he calls for help - ask Wizard Finix to find him and he'll point the way, just like RS3;
Talking to any blue-robed wizard in the Runespan now points you to the yellow wizard, and his call for help reaches you anywhere in the Runespan.
