11 new quests, and every special attack from the Lost City (revision 289) era is now in.

Kalphite Queen is in, complete with a pet, a hiscore, and a custom rare drop and teleport.

Fight Caves is in too — pet, hiscore, and a chance at Tzhaar equipment on completion.

New Slayer monster drop tables added and assigned to Slayer masters — not every master yet, but more are coming.

New clue scroll rewards from 2006 have been added.

The collection log has grown from 295 to 348 entries.

The bank interface has been overhauled with search, placeholders, and tabs.

A new ::drops interface lets you search any monster's drop table by monster or item name — or browse the whole list.

The world map is in — Ctrl+M, or click the icon.

The rest of the orb tray is functional too — special attack, run toggle, and the others.

A new preview login screen, with saved usernames.

Two new HD rendering backends powered by Babylon.js — WebGL2, and WebGPU in beta.

A long-running z-buffering bug in HD mode is fixed.

A downloadable, browserless client is available, and it uses your graphics card properly.

Fullscreen and resizable window modes are in as an early access option.

All cache data from the 377 version has been added, while retaining all of 2004Plus's own semi-custom content.

2004Plus's custom areas have been moved to fit around the newly imported map.

Real instanced map chunks have been added.

Zulrah now uses OSRS-style models, with the rest of her missing rotations added.

A modern animation system has been added under the hood.

Scripts and data imported from the Lost City 377/289 versions — including but not limited to new potions, the agility arena, new jewellery, new random events, and Castle Wars (early access).