Streams Reflowing

[2.17.1] - 11/6/2026

Fixed

• With Caves Reflowing, a stream that starts where water from underground comes back out is as wide as the stream that went under, and the water below it widens to match, instead of starting as a thin trickle. New land.

[2.17.0] - 11/6/2026

Added

• Carve Wand (two sticks over a Heart of the Sea): lay out a stream like the Flow Wand, set its width and height at each point, and click the air to carve it as a real stream, with the same banks, berms and shore materials and a current running along it, its water three blocks under each point. A path starts a block wide and widens half a block with each point you add. Sneak-click the air to reverse its flow, or hold it to clear every path not yet carved. Points can be raised or lowered freely, so a stream can run uphill. Carving again after an edit, or removing the path, puts the old ground back.
• With Caves Reflowing, water from a stream that goes underground can come back out lower down as a new stream that runs on to a river, lake or the sea and swells the water below it. New land.

Changed

• The Flow Wand is crafted from two sticks over a nautilus shell.
• Ctrl+Z (Cmd+Z on a Mac) while holding a Flow or Carve Wand undoes your last wand action, including any ground it dug or put back.
• Flow and Carve Wand points sit level with the top of the block they were placed on, their curve handles always stand out ready to grab, and the path you are editing stays drawn however far it runs.
• Default stream banks sit tighter to the water and fade softly into the land in patches, with no wide banks ending in a hard line.
• Bank styles can set blob_size to give patches a fixed size in blocks.
• Stone, gravel and other shore materials now stay right at the waterline, with only rare patches higher up; the rest of each bank matches the surrounding ground. Taiga banks no longer turn to cobblestone far up the slope.
• Shore materials reach at most 10% of a stream's width out from the water by default; a bank style's waterline can set reach to change that.
• Lake and sea shores wear their shore materials in a band as narrow as a 12-block-wide stream's, instead of a much wider one.
• Half of each waterfall's spray is now thick, chunky froth that stays close to the foot of the fall.
• Streams no longer end in lakes too small to hold them; a lake must be at least four times as wide as the stream that flows into it. New land.

[2.16.2] - 10/27/2026

This Release includes all changes between 2.16.0 - 2.16.2

Highlights

• Streams 3x as fast! Stream planning moves 3x as fast. Existing worlds keep their streams exactly as they were.
• Half the CPU, just as many streams Stream planning uses about half the CPU on heavy terrain packs. Existing worlds keep their streams exactly as they were.
• Reflow the world you already have. /streams reflow gives every pond, stream and channel in an existing world a current that runs downhill to the sea, and /streams reflow carve cuts new streams into land generated without the mod, with a preview first and an exact undo. Built areas and villages are left alone.
• The Flow Wand. Draw currents by hand like a pen tool: click to place points, drag to bend the curve and set how wide and deep it runs. Sneak-click the air for still mode, which calms a patch or a strip of water. Players without the mod can use it too.
• No more structure freezes. Nether portals, trial-chamber vaults, /locate, explorer maps and eyes of ender no longer freeze the game for minutes while a structure in fresh land waits for its streams.
• Works on more worlds. Streams and waterfalls now generate on worlds whose floor is below y=-64 (Tectonic min_y -128 or -512), and rivers from datapacks and mods such as Geophilic flow and take in streams like vanilla rivers.
• Tidier banks, water and ice. Banks stand a block above the water near every drop, streams no longer spill into caves or drain through sand and gravel, and ice at a freezing line ends in ragged edges instead of square patches.
• Simplified Chinese and Subtle Effects. The settings screen is now available in Simplified Chinese, and Subtle Effects' waterfall foam, splashes and drips work with this mod's streams and waterfalls.

[2.16.2]

Added

• The Flow Wand has a still mode (sneak-click the air): a single point makes a round patch of calm water you can widen, and a drawn path makes a calm strip.
• The settings screen is now available in Simplified Chinese.

Changed

• Stream planning uses about half the CPU on heavy terrain packs, and new land generates sooner as you explore. The streams are exactly the same as before.
• New worlds plan streams faster again on every terrain accuracy level below Extreme. Worlds you already have keep their streams exactly as they were.
• With Horizons Reshowing installed, new worlds on Medium place streams from a finer reading of the ground.
• Streams no longer spill where they cut through a cave under the bank.
• Sand and gravel beside stream water no longer drop into caves below and drain the stream.
• With TerraFirmaCraft, streams can end in its rivers and oceans.
• A stream's built-up banks always stand at least one block above its water, so they hold it in.
• With Subtle Effects installed, its waterfall foam now shows at the foot of this mod's waterfalls instead of along every small step of a stream, under the same waterfall foam settings as Effective and Particular.
• With Subtle Effects installed, its splashes, drips, bubbles and melting snow now work in stream water as they do in any other water.

Fixed

• Where a stream or lake crosses from freezing land into warmer land, its ice no longer ends in square 4-block patches and dead-straight lines beside open water; the edge of the ice is as ragged as on the world's own rivers. New land.
• Rivers from datapacks and mods such as Geophilic now flow and take in streams like vanilla rivers, where before their current stopped at the border with any other river and most streams around them were missing. New land.
• Map mods and other screens now show the stream biome's name instead of a raw key.
• On Fabric, block and fluid tooltips such as Jade's now call stream water "Water" instead of showing a raw key.
• On a new install, no stream starts and no lake forms in Terrestria's caldera and canyon biomes again; a config file you already have keeps its own biome blacklist.
• Nether portals, trial-chamber vaults, /locate, explorer maps and eyes of ender no longer freeze the game for minutes in freshly generating land while a structure there waits for its streams; that structure is placed straight away instead.
• Streams and waterfalls now generate on worlds whose bottom is lowered below y=-64 (for example Tectonic with min_y set to -128 or -512), which until now got few or none. New land.

[2.16.1] - 10/24/2026

Everything in 2.16.0, plus the changes below.

Added

• /streams reflow carve radius <blocks> carves new streams into land that was generated without the mod, following the ground that is actually there; places players have lived in and villages are left alone, and /streams reflow carve undo puts the land back exactly. carve preview shows the plan first without changing anything.
• The Flow Wand (/streams wand, the Tools & Utilities creative tab, or crafted from two sticks above a Heart of the Sea) draws currents by hand, like a pen tool: click water to place points, drag to bend the curve, and drag the red and green arrows to set how wide and how deep the current runs. Players without the mod can use it too, within arm's reach.

Changed

• A stream's banks now always stand a block above its water within 7 blocks of any step down in the stream, so water no longer slops over the bank at small drops. New land.
• Near where a stream ends -- its last 4 blocks of height above the sea, lake or river it flows into -- its banks stay level with the water, with no raised rim along beaches and shores. New land.
• On Fabric, currents no longer go missing after leaving a world and opening it again without restarting the game.
• The mod no longer writes streamsreflowing-stall-...txt files beside your world when chunk generation pauses; they were a diagnostic, and most were false alarms.

[2.16.0] - 10/16/2026

Everything in 2.15.2, plus the changes below.

Added

• /streams reflow radius <blocks> (or all) gives the water already in a world a current that runs downhill: ponds drain through every exit, streams flow into each other and on to the sea, lakes or lagoons, and water with nowhere lower to go stays still. For worlds made before the mod, WorldPainter maps and hand-dug channels. /streams reflow clear radius <blocks> (or clear all) removes it.

[2.15.2] - 10/14/2026

Everything in 2.15.1, plus the changes and fixes below.

Changed

• On a multiplayer server, the settings screen now says that changes made there do not change the server, and stars the settings that the server's own settings file decides.
• Streams follow UltraTerraForged's terrain and rivers the way they follow ReTerraForged's; its own rivers keep their still water. New land.

Fixed

• With One Dimension installed, streams no longer line their beds and banks with netherrack or end stone, and no longer cut channels and holes into the Nether and End layers of the world. New land.
• On FreeTerraForged worlds that also have Lithosphere or Still Life installed, streams no longer sit above the ground on raised banks in newly created worlds.
• FreeTerraForged rivers: the water's current and the drifting particles now run the same way, downstream and along the river's bends; on some rivers the particles drifted upstream.

[2.15.1] - 10/11/2026

Everything in 2.15.0, plus the changes and fixes below.

Changed

• Villages and other structures built from many pieces can now stand across streams and lakes: only the buildings that would sit in the water are left out. New land.
• Village paths cross streams on small bridges: a deck of the village's own planks on log posts. New land.
• A stream running along a hillside or cliff now gets a raised bank on its downhill side, so it no longer spills off the edge. New land.
• The built-up bank of a stream over a drop is rounder: its outer edge steps down and its underside slopes in under the water, where it used to end in a square ledge. New land.

Fixed

• The minimum stream length now applies to a whole stream with all its branches: a branching stream whose longest arm is shorter than the minimum is removed, where before only unbranched streams were. New land.
• With Flowing Fluids installed, streams are protected from being drained by it again, and the error this left in the log when a world loads is gone.

[2.15.0] - 10/9/2026

Highlights

• MC 26.3 Support Users may encounter bugs, please report them to our discord if so.
• One settings screen everywhere. The same screen on Fabric, NeoForge and Forge, on every Minecraft version, with presets, search and plain names.
• Presets. Seven one-click setups from "Small scale, light" to "Massive scale, overnight pregen".
• Players can help the server. Players with the mod can plan streams for the land they explore, so the server does less.
• Better waterfalls. Spray that jumps and falls back, bigger foam on taller falls, and a choice of Effective's and Particular's foam.
• Currents you can tune. Separate sliders for how hard water pushes players, boats and mobs.

Added

• A settings screen with tabs, sliders, search, a reset button per setting, a performance-cost colour beside each setting, and changes that save on their own. Forge 1.20.1 had no screen before.
• Seven presets that set the stream system size, terrain accuracy, shortest stream and smallest lake together.
• A 256-block stream system size.
• Sliders for how hard flowing water pushes players, boats and mobs, from none to four times the game's own push.
• With Effective or Particular installed: a switch to show their waterfall foam at this mod's waterfalls, and a choice of whose foam shows (none, theirs, this mod's, or both).
• Multiplayer: the server setting "Players help prepare streams" lets the games of players who have this mod plan streams for the server. Off by default; helpers are sent the world seed.
• A setting to turn off terrain estimates and read every land height in full.

Changed

• NeoForge and Forge now use the same settings files as Fabric, streamsreflowing.properties and streamsreflowing-client.properties. Existing settings are carried over on first start and the old .toml files are kept with .imported added.
• Boats are pushed twice as hard by flowing water, and players and mobs a fifth harder. This applies to all flowing water.
• Waterfall spray jumps up and drops back, and taller waterfalls throw larger puffs. The smallest puffs are a quarter smaller than before.
• "Amount of water" at 100% now gives what 80% gave before. Affects land not yet generated, in existing worlds too.
• New defaults, for new settings files only: shortest stream 75 blocks (was 50), smallest lake about 32 blocks across (was about 23), driest climates keep a tenth of the usual water (was a fiftieth), and streams no longer end in biomes tagged only as "wet".
• Fabric gains the "ragged bank edges" setting.
• Removed the "older stream fluid" setting for Fabric dedicated servers; "Always use stream water" covers the same need.

Fixed

• In worlds built with Lithostitched (Regions Unexplored, many Terralith and Tectonic packs), streams and lakes take the pack's own river biome instead of plain vanilla river. New land.
• World generation is no longer held up for minutes by a structure waiting on nearby streams, and the log says when generation is waiting on stream planning.

[2.14.6] - 10/8/2026

Fixed

• Grass, flowers and ferns are no longer left hanging in the air around a lake whose shore was cut back into a slope. New land.
• A tree is no longer left hanging in the air where a stream bank or lake shore was cut out from under it; it is removed, leaves and all. New land.

[2.14.5] - 10/5/2026

Performance

• 23% faster stream planning on MC 26.3

Changed

• A blacklisted biome no longer cuts a stream off at its border: no stream starts there and no lake forms there on its own, and a stream that starts elsewhere runs through. New worlds; existing worlds keep the old behaviour.
• The biome blacklist is empty on a new install; it used to list three volcanic biomes from Terralith, Terrestria and Oh The Biomes We've Gone. An existing config keeps its list.
• The smallest lake is now about 512 blocks of water surface by default, down from 1024, so small lakes form more often. New land; a config file you already have keeps its own value.
• On Minecraft 26.3, streams and lakes on POTATO, LOW and MEDIUM read the land at spots where it is cheapest to read, cutting the terrain reading a watershed needs by about an eighth, and those lakes get finer shorelines. New setting alignReadPoints (on) turns it off to place every point exactly.

Fixed

• A basin that only just met the smallest-lake size no longer fills as a lake of a single cell-wide patch of water. A pool in the path of a stream still fills whatever its size. New land.
• With a datapack or mod that changes whether rivers freeze, streams no longer show broken lines of open water or ice along chunk borders: a stream now freezes exactly as that world's rivers do. New land.
• The NeoForge 26.3 download loads again on current NeoForge builds; it now needs NeoForge 26.3.0.48 or newer, and says so instead of crashing on older ones.
• On NeoForge for Minecraft 26.1 and 26.2, streams now spawn the mobs other mods add to rivers, as they do on every other version.

[2.14.4] - 10/3/2026

Everything in 2.14.3, plus the fixes below.

Changed

• Lake shorelines are much rounder, especially on the lower terrain-accuracy levels, where they showed blocky corners and notches. Small ponds keep their shape. Applies to new lakes; lakes already in a world keep their shoreline.

Fixed

• With the water source conversion gamerule on, diagonal waterfalls keep their shape instead of filling in to solid cubes of still water. New water sources now only form where the water is closed in on all four sides, so pools and trenches still refill.
• The game no longer refuses to start when another mod, or a Minecraft change, leaves one of this mod's hooks with nothing to attach to; that one feature is skipped instead. This covers the crash without Sodium installed.
• The game no longer fails to start without a shader mod installed when mixin checks are strict (seen alongside C2ME).
• The NeoForge 1.21.1 and 1.21.11 downloads no longer install on other Minecraft versions, where they crashed at startup; NeoForge now names the version you need instead.

[2.14.3] - 9/28/2026

Corrections, plus Minecraft 26.3 as an early preview. On newly generated land, stream widths and lake levels can differ from 2.14.1 -- both from fixes below.

Added

• Minecraft 26.3 on Fabric and NeoForge, as an EARLY PREVIEW: it loads and generates, but without the terrain work 26.3 needs, so treat those worlds as throwaway. 26.1 and 26.2 are unchanged.
• A mod logo, so the mod shows one in the mods list.
• Setting "physicsModWater": 3 (default) keeps this mod's moving water and keeps the Physics Mod's ocean off streams, 1 hands stream surfaces to that ocean instead, 0 leaves that mod alone.

Changed

• With the Physics Mod installed, streams are filled with this mod's own water so that mod's ocean leaves them alone. Applies to new land.
• This mod no longer changes any of the Physics Mod's settings. If its ocean physics is off in its own menu, turn it back on once.

Performance

• Rain near rivers no longer drops the frame rate. In singleplayer it could fall to single digits beside streams while raining.
• Waterfall spray costs far less to draw.
• Distant falls behind you no longer build up spray. Turn back and it fills in within a second.
• Large Sable vessels (Create Aeronautics and similar) cost far less server time, including ones nowhere near water.
• Less spray while it rains. Clear weather is unchanged.

Fixed

• An intermittent crash at launch with C2ME installed, which struck on some launches and not others.
• A stream is now as wide as the streams that reach it, instead of standing at river width a few blocks below its source. New land.
• Still-looking patches along an otherwise moving stream.
• A lake settles at one level instead of a high rim around a lower middle. New land; a lake that already exists keeps its level.
• The middle of a large lake wears bed material instead of the grass the land grew.
• A lake over a cave no longer stands on nothing: its bed closes underneath with tapered rock. New land.
• Streams no longer stop dead at a mineshaft entrance, and a mineshaft whose tunnels reach a distant stream is no longer dropped from the world. New land.
• Streams no longer end in empty ground above a buried structure. New land.
• Buildings no longer stand on a stream crossing their grounds. New land.
• Bank materials no longer change along a chunk border. New land.
• Trees beside a stream keep their trunks, so no canopy hangs unsupported over the water.
• With Dynamic Trees, trees no longer grow inside lakes. New land.
• Water falling down a drop keeps moving from the lip to the pool.
• Frost walker lays ice on stream water, and that ice thaws back to stream water instead of a plain patch that Flowing Fluids can drain away.
• Rivers and oceans no longer freeze over in warm biomes. New land only: an existing world is not repaired.
• Streams and lakes no longer take their weather from a dimension another mod adds.
• Stream water and ordinary water no longer turn into each other where they meet.
• Elaina's Broom, and any entity a pack tags, is no longer swept away by a current.
• A fish or item you reel in reaches you instead of drifting off. Loose items still drift downstream.
• With Flowing Fluids, streams no longer swell, climb or spill out sideways. On Fabric they had no protection at all.
• Streams follow ReTerraForged and FreeTerraForged terrain, and those mods' rivers get a current. This had never worked in a published build, and is not yet verified in game.
• Particular's and Effective's waterfall effects stand down along streams; neither compatibility had ever taken effect. 26.x NeoForge gets them too.
• Waterfall foam from Particular or Effective keeps to a limit instead of building up without one.
• Video Settings / Particles now quietens waterfall spray, a particle limit of zero stops every particle, and the limit holds for one waterfall as well as for all of them.
• With Sodium, a stream meets a lake or the sea flush instead of showing a seam.
• A rare crash while chunks arrived around a stream.
• The spill-over-water setting now warns that turning it off can overflow other mods' water tanks and channels.

[2.14.1] - 9/20/2026

Added

• A bank style's bed and waterline rings can now plant scenery in the water itself: bed on the submerged floor (sea grass, kelp, coral) and waterline at the open surface (lily pads), alongside the existing land placements on bank and other rings.

Changed

• Bank styles are rings out from the water: bed, waterline, bank, an optional second bank ring, and more, and every size is a percentage of the stream's width, so a wide river wears wide banks and a brook narrow ones from the same file. Lists of blocks mix as patches instead of a per-column speckle, rings blend more softly into each other, a style can swap its blocks where a stream is steep, fast, bending, near its mouth or on a long flat, and can put scenery on a ring. A starred style wins over the other styles of its kind; beaches are starred by default. Styles written for earlier versions keep working unchanged. See GUIDE.md in the bank_styles config folder.
• The built-in bank styles show their mixed materials as patches instead of a block-by-block scatter: river and forest beds come as stretches of gravel and stretches of clay, taiga shallows as cobble and gravel, and the sand on the inside of a bend reads as a bar rather than flecks. Applies to new land.
• A bank feature file with no biomes or tags is a definition now, placed where a style's ring names it; a file that names biomes or tags places itself as before. Leftover files naming scenery the mod withdrew are removed on load.
• The guide and examples in the bank config folders are rewritten for the new format, and refresh themselves whenever the format changes.
• The bank styles examples/ folder is a set of worked examples now -- one per technique, each explaining itself, with 08_everything.json using every field the format has: all eight stream properties, all three material patterns, and scenery on the bed, at the waterline and on the banks. The copy of all 47 shipped styles it used to hold is gone (a style you write replaces the shipped one for the biomes it names, so you never needed the file), and the examples sit in examples/ itself rather than a techniques subfolder. Two more ready-made scenery definitions are seeded: lily pads for a waterline ring and seagrass for a bed ring.
• Streams sit in their valleys and follow the ground along their whole length on every terrain-accuracy setting, POTATO included. New setting, "terrain fit": closest, lighter, or none; follows the terrain-accuracy setting by default.
• Lake shorelines now follow the terrain-accuracy setting too: finer on EXTREME and MAX, unchanged on HIGH, and a little coarser but quicker to generate on MEDIUM, LOW and POTATO. Applies to new land only.
• MAX routes streams on a finer grid than before.
• HIGH, EXTREME and MAX no longer cover the land in tiny headwater streams: a stream needs the same amount of land draining into it on every accuracy level, so a higher level places the same streams more closely instead of adding many more. Applies to new land.
• Streams follow valleys and ridges more closely in rugged terrain: the land is now read in full wherever it bends, instead of being estimated between readings. New setting, "adaptive grid read", on by default; turning it off plans streams faster. Applies to new worlds.
• Streams no longer loop back on themselves or leave nubs on their banks: where a stream bends back close enough to touch itself, it cuts straight across, the way a river cuts off an oxbow. Applies to new land.
• A stream that runs into a pit too deep to cross and too small to be a lake now fills it as a plunge pool and carries on from the rim, instead of ending there. Mostly seen on HIGH and above, which are the levels that notice such pits. Applies to new land.
• New setting, "legacy stream shaping": places streams the way 2.13.x did, for comparing the two or for keeping new land in step with a world begun on an earlier version.
• The config is reorganised around what you are looking for: performance and stream planning first (the accuracy level, the watershed size, how far rivers are planned), then stream appearance, water behaviour, and particles and sounds, each in its own section, with short descriptions that fit the in-game tooltips. Watershed size is now a plain choice of 512 to 8192 blocks (1024 by default) instead of following the accuracy level. Settings you had are carried over, and a world keeps the watershed size it was started with whatever the setting says later, so existing worlds are unaffected.
• Rivers and waterfalls underground (the Caves Reflowing addon) are heard when you are down there with them, and cave waterfalls spray. Water beneath the ground you stand on stays silent: a river or fall below you is heard through open air but not through a floor of rock, while a wall beside you never blocks it.
• Bank plant life, flora and bank materials on all water, underwater plants and floating-snow cleanup no longer follow the terrain-accuracy setting: each is its own setting, on at the level MEDIUM had, on every accuracy level, and floating-snow cleanup simply always runs. POTATO and LOW worlds gain them.

Fixed

• A lake dug into a hillside no longer leaves a flat wall of dirt standing over its water: its shore is now shaped the way a stream's banks are, sloping gently up out of the water and easing into the surrounding land, whether that land stands four blocks above the lake or forty. Applies to new land.
• A lake now shallows as it reaches its shore instead of holding its full depth to the water's edge, so you wade out of it up a beach rather than stepping off a ledge. Applies to new land.
• A lake shore cut into a hillside wears the ground the land around it wears -- turf over its own soil -- instead of showing bare rock where the cut went in. Applies to new land.
• Streams now meet a lake at its real shoreline: they are held at its surface, pour into it and leave it by the water's own edge, rather than by a blockier outline that could sit a few blocks off it. Applies to new land.
• Lake shorelines curve between one stretch of shore and the next, instead of running as straight facets meeting at angles. Applies to new land.
• On NeoForge and Forge, streams no longer leave whole chunks uncarved where a biome mod's biomes are not listed as overworld biomes (Still Life among them); they now form in every biome the overworld generates, as on Fabric.
• The POTATO terrain-accuracy setting now generates new land as quickly as intended; its streams may sit slightly differently than before.
• A lake whose outlet leaves over a waterfall is no longer removed, which left a river starting at full width from nowhere and the streams that fed the lake missing.
• Streams meeting at a confluence are no longer removed as dead ends when the river carries on from that very spot, which left the river below suddenly wider with nothing joining it; many more tributaries survive, most noticeably on EXTREME and MAX.
• Streams no longer stop on dry ground short of the sea where the flats along the shore count as ocean (World Reflowing's coasts, for one); they now run on into the water, in newly generated land.
• Rare "Detected unsafe terrain read" warnings in server logs on wide streams, from a bank column's waterfall check reaching across chunk borders. It now stays within the safe range, like the rest of the carve.
• River currents that reach the sea no longer sometimes flow backward, toward the land instead of out to the coast; most noticeable with biome mods that reshape the coastline.
• The shortest-stream setting now catches a tiny stream that joins another one right before the coast, not just a lone stream running straight to the sea; previously that case was always kept regardless of the setting.
• On Minecraft 26.x, items, mobs and boats drift at the stream's own speed again instead of one fixed rate, and water mobs set to hold position in a current (drowned included) no longer get swept along.
• riverDrainageSize's description now states its true default (one watershed), replacing a stale claim of twice that no longer matched the setting's real behaviour.