diff --git a/wasip2/README.md b/wasip2/README.md
index c30591070..795c34d01 100644
--- a/wasip2/README.md
+++ b/wasip2/README.md
@@ -20,13 +20,13 @@ WASI Preview 2 contains the following APIs:
 
 | Proposal          | Version |
 |-------------------|---------|
-| [wasi-io]         | 0.2.6   |
-| [wasi-clocks]     | 0.2.6   |
-| [wasi-random]     | 0.2.6   |
-| [wasi-filesystem] | 0.2.6   |
-| [wasi-sockets]    | 0.2.6   |
-| [wasi-cli]        | 0.2.6   |
-| [wasi-http]       | 0.2.6   |
+| [wasi-io]         | 0.2.7   |
+| [wasi-clocks]     | 0.2.7   |
+| [wasi-random]     | 0.2.7   |
+| [wasi-filesystem] | 0.2.7   |
+| [wasi-sockets]    | 0.2.7   |
+| [wasi-cli]        | 0.2.7   |
+| [wasi-http]       | 0.2.7   |
 
 [wasi-io]: https://github.com/WebAssembly/wasi-io
 [wasi-clocks]: https://github.com/WebAssembly/wasi-clocks
diff --git a/wasip2/cli/command.wit b/wasip2/cli/command.wit
index 6d3cc83f5..dfecf913e 100644
--- a/wasip2/cli/command.wit
+++ b/wasip2/cli/command.wit
@@ -1,4 +1,4 @@
-package wasi:cli@0.2.6;
+package wasi:cli@0.2.7;
 
 @since(version = 0.2.0)
 world command {
diff --git a/wasip2/cli/imports.wit b/wasip2/cli/imports.wit
index d9fd01710..e7f7942de 100644
--- a/wasip2/cli/imports.wit
+++ b/wasip2/cli/imports.wit
@@ -1,17 +1,17 @@
-package wasi:cli@0.2.6;
+package wasi:cli@0.2.7;
 
 @since(version = 0.2.0)
 world imports {
   @since(version = 0.2.0)
-  include wasi:clocks/imports@0.2.6;
+  include wasi:clocks/imports@0.2.7;
   @since(version = 0.2.0)
-  include wasi:filesystem/imports@0.2.6;
+  include wasi:filesystem/imports@0.2.7;
   @since(version = 0.2.0)
-  include wasi:sockets/imports@0.2.6;
+  include wasi:sockets/imports@0.2.7;
   @since(version = 0.2.0)
-  include wasi:random/imports@0.2.6;
+  include wasi:random/imports@0.2.7;
   @since(version = 0.2.0)
-  include wasi:io/imports@0.2.6;
+  include wasi:io/imports@0.2.7;
 
   @since(version = 0.2.0)
   import environment;
diff --git a/wasip2/cli/stdio.wit b/wasip2/cli/stdio.wit
index cb8aea2d9..1c3c6d074 100644
--- a/wasip2/cli/stdio.wit
+++ b/wasip2/cli/stdio.wit
@@ -1,7 +1,7 @@
 @since(version = 0.2.0)
 interface stdin {
   @since(version = 0.2.0)
-  use wasi:io/streams@0.2.6.{input-stream};
+  use wasi:io/streams@0.2.7.{input-stream};
 
   @since(version = 0.2.0)
   get-stdin: func() -> input-stream;
@@ -10,7 +10,7 @@ interface stdin {
 @since(version = 0.2.0)
 interface stdout {
   @since(version = 0.2.0)
-  use wasi:io/streams@0.2.6.{output-stream};
+  use wasi:io/streams@0.2.7.{output-stream};
 
   @since(version = 0.2.0)
   get-stdout: func() -> output-stream;
@@ -19,7 +19,7 @@ interface stdout {
 @since(version = 0.2.0)
 interface stderr {
   @since(version = 0.2.0)
-  use wasi:io/streams@0.2.6.{output-stream};
+  use wasi:io/streams@0.2.7.{output-stream};
 
   @since(version = 0.2.0)
   get-stderr: func() -> output-stream;
diff --git a/wasip2/clocks/monotonic-clock.wit b/wasip2/clocks/monotonic-clock.wit
index f3bc83912..98a9ad42a 100644
--- a/wasip2/clocks/monotonic-clock.wit
+++ b/wasip2/clocks/monotonic-clock.wit
@@ -1,4 +1,4 @@
-package wasi:clocks@0.2.6;
+package wasi:clocks@0.2.7;
 /// WASI Monotonic Clock is a clock API intended to let users measure elapsed
 /// time.
 ///
@@ -10,7 +10,7 @@ package wasi:clocks@0.2.6;
 @since(version = 0.2.0)
 interface monotonic-clock {
     @since(version = 0.2.0)
-    use wasi:io/poll@0.2.6.{pollable};
+    use wasi:io/poll@0.2.7.{pollable};
 
     /// An instant in time, in nanoseconds. An instant is relative to an
     /// unspecified initial value, and can only be compared to instances from
diff --git a/wasip2/clocks/timezone.wit b/wasip2/clocks/timezone.wit
index ca98ad152..4740bde00 100644
--- a/wasip2/clocks/timezone.wit
+++ b/wasip2/clocks/timezone.wit
@@ -1,4 +1,4 @@
-package wasi:clocks@0.2.6;
+package wasi:clocks@0.2.7;
 
 @unstable(feature = clocks-timezone)
 interface timezone {
diff --git a/wasip2/clocks/wall-clock.wit b/wasip2/clocks/wall-clock.wit
index 76636a0c9..2179b6c56 100644
--- a/wasip2/clocks/wall-clock.wit
+++ b/wasip2/clocks/wall-clock.wit
@@ -1,4 +1,4 @@
-package wasi:clocks@0.2.6;
+package wasi:clocks@0.2.7;
 /// WASI Wall Clock is a clock API intended to let users query the current
 /// time. The name "wall" makes an analogy to a "clock on the wall", which
 /// is not necessarily monotonic as it may be reset.
diff --git a/wasip2/clocks/world.wit b/wasip2/clocks/world.wit
index 5c53c51a1..a08ff2c2c 100644
--- a/wasip2/clocks/world.wit
+++ b/wasip2/clocks/world.wit
@@ -1,4 +1,4 @@
-package wasi:clocks@0.2.6;
+package wasi:clocks@0.2.7;
 
 @since(version = 0.2.0)
 world imports {
diff --git a/wasip2/filesystem/preopens.wit b/wasip2/filesystem/preopens.wit
index f22847940..b1a0a9972 100644
--- a/wasip2/filesystem/preopens.wit
+++ b/wasip2/filesystem/preopens.wit
@@ -1,4 +1,4 @@
-package wasi:filesystem@0.2.6;
+package wasi:filesystem@0.2.7;
 
 @since(version = 0.2.0)
 interface preopens {
diff --git a/wasip2/filesystem/types.wit b/wasip2/filesystem/types.wit
index 75c19044c..a7da2b72f 100644
--- a/wasip2/filesystem/types.wit
+++ b/wasip2/filesystem/types.wit
@@ -1,4 +1,4 @@
-package wasi:filesystem@0.2.6;
+package wasi:filesystem@0.2.7;
 /// WASI filesystem is a filesystem API primarily intended to let users run WASI
 /// programs that access their files on their existing filesystems, without
 /// significant overhead.
@@ -26,9 +26,9 @@ package wasi:filesystem@0.2.6;
 @since(version = 0.2.0)
 interface types {
     @since(version = 0.2.0)
-    use wasi:io/streams@0.2.6.{input-stream, output-stream, error};
+    use wasi:io/streams@0.2.7.{input-stream, output-stream, error};
     @since(version = 0.2.0)
-    use wasi:clocks/wall-clock@0.2.6.{datetime};
+    use wasi:clocks/wall-clock@0.2.7.{datetime};
 
     /// File size or length of a region within a file.
     @since(version = 0.2.0)
diff --git a/wasip2/filesystem/world.wit b/wasip2/filesystem/world.wit
index 65597f9f2..67309b43f 100644
--- a/wasip2/filesystem/world.wit
+++ b/wasip2/filesystem/world.wit
@@ -1,4 +1,4 @@
-package wasi:filesystem@0.2.6;
+package wasi:filesystem@0.2.7;
 
 @since(version = 0.2.0)
 world imports {
diff --git a/wasip2/http/proxy.wit b/wasip2/http/proxy.wit
index 5bd9f9989..b503ea795 100644
--- a/wasip2/http/proxy.wit
+++ b/wasip2/http/proxy.wit
@@ -1,4 +1,4 @@
-package wasi:http@0.2.6;
+package wasi:http@0.2.7;
 
 /// The `wasi:http/imports` world imports all the APIs for HTTP proxies.
 /// It is intended to be `include`d in other worlds.
@@ -6,25 +6,25 @@ package wasi:http@0.2.6;
 world imports {
   /// HTTP proxies have access to time and randomness.
   @since(version = 0.2.0)
-  import wasi:clocks/monotonic-clock@0.2.6;
+  import wasi:clocks/monotonic-clock@0.2.7;
   @since(version = 0.2.0)
-  import wasi:clocks/wall-clock@0.2.6;
+  import wasi:clocks/wall-clock@0.2.7;
   @since(version = 0.2.0)
-  import wasi:random/random@0.2.6;
+  import wasi:random/random@0.2.7;
 
   /// Proxies have standard output and error streams which are expected to
   /// terminate in a developer-facing console provided by the host.
   @since(version = 0.2.0)
-  import wasi:cli/stdout@0.2.6;
+  import wasi:cli/stdout@0.2.7;
   @since(version = 0.2.0)
-  import wasi:cli/stderr@0.2.6;
+  import wasi:cli/stderr@0.2.7;
 
   /// TODO: this is a temporary workaround until component tooling is able to
   /// gracefully handle the absence of stdin. Hosts must return an eof stream
   /// for this import, which is what wasi-libc + tooling will do automatically
   /// when this import is properly removed.
   @since(version = 0.2.0)
-  import wasi:cli/stdin@0.2.6;
+  import wasi:cli/stdin@0.2.7;
 
   /// This is the default handler to use when user code simply wants to make an
   /// HTTP request (e.g., via `fetch()`).
diff --git a/wasip2/http/types.wit b/wasip2/http/types.wit
index c9f3cc4b9..9ebff8b50 100644
--- a/wasip2/http/types.wit
+++ b/wasip2/http/types.wit
@@ -4,13 +4,13 @@
 @since(version = 0.2.0)
 interface types {
   @since(version = 0.2.0)
-  use wasi:clocks/monotonic-clock@0.2.6.{duration};
+  use wasi:clocks/monotonic-clock@0.2.7.{duration};
   @since(version = 0.2.0)
-  use wasi:io/streams@0.2.6.{input-stream, output-stream};
+  use wasi:io/streams@0.2.7.{input-stream, output-stream};
   @since(version = 0.2.0)
-  use wasi:io/error@0.2.6.{error as io-error};
+  use wasi:io/error@0.2.7.{error as io-error};
   @since(version = 0.2.0)
-  use wasi:io/poll@0.2.6.{pollable};
+  use wasi:io/poll@0.2.7.{pollable};
 
   /// This type corresponds to HTTP standard Methods.
   @since(version = 0.2.0)
diff --git a/wasip2/io/error.wit b/wasip2/io/error.wit
index 784f74a53..acab3a811 100644
--- a/wasip2/io/error.wit
+++ b/wasip2/io/error.wit
@@ -1,4 +1,4 @@
-package wasi:io@0.2.6;
+package wasi:io@0.2.7;
 
 @since(version = 0.2.0)
 interface error {
diff --git a/wasip2/io/poll.wit b/wasip2/io/poll.wit
index 7f711836c..a525164b9 100644
--- a/wasip2/io/poll.wit
+++ b/wasip2/io/poll.wit
@@ -1,4 +1,4 @@
-package wasi:io@0.2.6;
+package wasi:io@0.2.7;
 
 /// A poll API intended to let users wait for I/O events on multiple handles
 /// at once.
diff --git a/wasip2/io/streams.wit b/wasip2/io/streams.wit
index c5da38c86..7ae29a3cd 100644
--- a/wasip2/io/streams.wit
+++ b/wasip2/io/streams.wit
@@ -1,4 +1,4 @@
-package wasi:io@0.2.6;
+package wasi:io@0.2.7;
 
 /// WASI I/O is an I/O abstraction API which is currently focused on providing
 /// stream types.
@@ -154,27 +154,13 @@ interface streams {
         /// Perform a write of up to 4096 bytes, and then flush the stream. Block
         /// until all of these operations are complete, or an error occurs.
         ///
-        /// This is a convenience wrapper around the use of `check-write`,
-        /// `subscribe`, `write`, and `flush`, and is implemented with the
-        /// following pseudo-code:
-        ///
-        /// ```text
-        /// let pollable = this.subscribe();
-        /// while !contents.is_empty() {
-        ///     // Wait for the stream to become writable
-        ///     pollable.block();
-        ///     let Ok(n) = this.check-write(); // eliding error handling
-        ///     let len = min(n, contents.len());
-        ///     let (chunk, rest) = contents.split_at(len);
-        ///     this.write(chunk  );            // eliding error handling
-        ///     contents = rest;
-        /// }
-        /// this.flush();
-        /// // Wait for completion of `flush`
-        /// pollable.block();
-        /// // Check for any errors that arose during `flush`
-        /// let _ = this.check-write();         // eliding error handling
-        /// ```
+        /// Returns success when all of the contents written are successfully
+        /// flushed to output. If an error occurs at any point before all
+        /// contents are successfully flushed, that error is returned as soon as
+        /// possible. If writing and flushing the complete contents causes the
+        /// stream to become closed, this call should return success, and
+        /// subsequent calls to check-write or other interfaces should return
+        /// stream-error::closed.
         @since(version = 0.2.0)
         blocking-write-and-flush: func(
             contents: list<u8>
@@ -227,26 +213,8 @@ interface streams {
         /// Block until all of these operations are complete, or an error
         /// occurs.
         ///
-        /// This is a convenience wrapper around the use of `check-write`,
-        /// `subscribe`, `write-zeroes`, and `flush`, and is implemented with
-        /// the following pseudo-code:
-        ///
-        /// ```text
-        /// let pollable = this.subscribe();
-        /// while num_zeroes != 0 {
-        ///     // Wait for the stream to become writable
-        ///     pollable.block();
-        ///     let Ok(n) = this.check-write(); // eliding error handling
-        ///     let len = min(n, num_zeroes);
-        ///     this.write-zeroes(len);         // eliding error handling
-        ///     num_zeroes -= len;
-        /// }
-        /// this.flush();
-        /// // Wait for completion of `flush`
-        /// pollable.block();
-        /// // Check for any errors that arose during `flush`
-        /// let _ = this.check-write();         // eliding error handling
-        /// ```
+        /// Functionality is equivelant to `blocking-write-and-flush` with
+        /// contents given as a list of len containing only zeroes.
         @since(version = 0.2.0)
         blocking-write-zeroes-and-flush: func(
             /// The number of zero-bytes to write
diff --git a/wasip2/io/world.wit b/wasip2/io/world.wit
index 84c85c08e..73b1a6df5 100644
--- a/wasip2/io/world.wit
+++ b/wasip2/io/world.wit
@@ -1,4 +1,4 @@
-package wasi:io@0.2.6;
+package wasi:io@0.2.7;
 
 @since(version = 0.2.0)
 world imports {
diff --git a/wasip2/random/insecure-seed.wit b/wasip2/random/insecure-seed.wit
index d3dc03a6c..0209b84b0 100644
--- a/wasip2/random/insecure-seed.wit
+++ b/wasip2/random/insecure-seed.wit
@@ -1,4 +1,4 @@
-package wasi:random@0.2.6;
+package wasi:random@0.2.7;
 /// The insecure-seed interface for seeding hash-map DoS resistance.
 ///
 /// It is intended to be portable at least between Unix-family platforms and
diff --git a/wasip2/random/insecure.wit b/wasip2/random/insecure.wit
index d4d028480..820d069ee 100644
--- a/wasip2/random/insecure.wit
+++ b/wasip2/random/insecure.wit
@@ -1,4 +1,4 @@
-package wasi:random@0.2.6;
+package wasi:random@0.2.7;
 /// The insecure interface for insecure pseudo-random numbers.
 ///
 /// It is intended to be portable at least between Unix-family platforms and
diff --git a/wasip2/random/random.wit b/wasip2/random/random.wit
index a0ff95646..974ab465d 100644
--- a/wasip2/random/random.wit
+++ b/wasip2/random/random.wit
@@ -1,4 +1,4 @@
-package wasi:random@0.2.6;
+package wasi:random@0.2.7;
 /// WASI Random is a random data API.
 ///
 /// It is intended to be portable at least between Unix-family platforms and
diff --git a/wasip2/random/world.wit b/wasip2/random/world.wit
index 099f47b36..333b42598 100644
--- a/wasip2/random/world.wit
+++ b/wasip2/random/world.wit
@@ -1,4 +1,4 @@
-package wasi:random@0.2.6;
+package wasi:random@0.2.7;
 
 @since(version = 0.2.0)
 world imports {
diff --git a/wasip2/sockets/ip-name-lookup.wit b/wasip2/sockets/ip-name-lookup.wit
index ee6419e7d..df2735aac 100644
--- a/wasip2/sockets/ip-name-lookup.wit
+++ b/wasip2/sockets/ip-name-lookup.wit
@@ -1,7 +1,7 @@
 @since(version = 0.2.0)
 interface ip-name-lookup {
     @since(version = 0.2.0)
-    use wasi:io/poll@0.2.6.{pollable};
+    use wasi:io/poll@0.2.7.{pollable};
     @since(version = 0.2.0)
     use network.{network, error-code, ip-address};
 
diff --git a/wasip2/sockets/network.wit b/wasip2/sockets/network.wit
index 6ca98b63b..95df71ff3 100644
--- a/wasip2/sockets/network.wit
+++ b/wasip2/sockets/network.wit
@@ -1,7 +1,7 @@
 @since(version = 0.2.0)
 interface network {
     @unstable(feature = network-error-code)
-    use wasi:io/error@0.2.6.{error};
+    use wasi:io/error@0.2.7.{error};
 
     /// An opaque resource that represents access to (a subset of) the network.
     /// This enables context-based security for networking.
diff --git a/wasip2/sockets/tcp.wit b/wasip2/sockets/tcp.wit
index beefd7b46..104d9aa39 100644
--- a/wasip2/sockets/tcp.wit
+++ b/wasip2/sockets/tcp.wit
@@ -1,11 +1,11 @@
 @since(version = 0.2.0)
 interface tcp {
     @since(version = 0.2.0)
-    use wasi:io/streams@0.2.6.{input-stream, output-stream};
+    use wasi:io/streams@0.2.7.{input-stream, output-stream};
     @since(version = 0.2.0)
-    use wasi:io/poll@0.2.6.{pollable};
+    use wasi:io/poll@0.2.7.{pollable};
     @since(version = 0.2.0)
-    use wasi:clocks/monotonic-clock@0.2.6.{duration};
+    use wasi:clocks/monotonic-clock@0.2.7.{duration};
     @since(version = 0.2.0)
     use network.{network, error-code, ip-socket-address, ip-address-family};
 
diff --git a/wasip2/sockets/udp.wit b/wasip2/sockets/udp.wit
index 9dbe6932d..ecf2dfe60 100644
--- a/wasip2/sockets/udp.wit
+++ b/wasip2/sockets/udp.wit
@@ -1,7 +1,7 @@
 @since(version = 0.2.0)
 interface udp {
     @since(version = 0.2.0)
-    use wasi:io/poll@0.2.6.{pollable};
+    use wasi:io/poll@0.2.7.{pollable};
     @since(version = 0.2.0)
     use network.{network, error-code, ip-socket-address, ip-address-family};
 
diff --git a/wasip2/sockets/world.wit b/wasip2/sockets/world.wit
index e86f02cec..9a4d317f7 100644
--- a/wasip2/sockets/world.wit
+++ b/wasip2/sockets/world.wit
@@ -1,4 +1,4 @@
-package wasi:sockets@0.2.6;
+package wasi:sockets@0.2.7;
 
 @since(version = 0.2.0)
 world imports {