diff --git a/Project.toml b/Project.toml
index e987eb6d9..1fd73f1bd 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "HTTP"
 uuid = "cd3eb016-35fb-5094-929b-558a96fad6f3"
 authors = ["Jacob Quinn", "Sam O'Connor", "contributors: https://github.com/JuliaWeb/HTTP.jl/graphs/contributors"]
-version = "0.9.14"
+version = "1.0.0"
 
 [deps]
 Base64 = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
diff --git a/src/IOExtras.jl b/src/IOExtras.jl
index 314292293..af9aadf59 100644
--- a/src/IOExtras.jl
+++ b/src/IOExtras.jl
@@ -66,37 +66,18 @@ _doc = """
 
 Signal start/end of write or read operations.
 """
-if isdefined(Base, :startwrite)
-    "$_doc"
-    Base.startwrite(io) = nothing
-else
-    "$_doc"
-    startwrite(io) = nothing
-end
 
-if isdefined(Base, :closewrite)
-    "$_doc"
-    Base.closewrite(io) = nothing
-else
-    "$_doc"
-    closewrite(io) = nothing
-end
+"$_doc"
+startwrite(io) = nothing
 
-if isdefined(Base, :startread)
-    "$_doc"
-    Base.startread(io) = nothing
-else
-    "$_doc"
-    startread(io) = nothing
-end
+"$_doc"
+closewrite(io) = nothing
 
-if isdefined(Base, :closeread)
-    "$_doc"
-    Base.closeread(io) = nothing
-else
-    "$_doc"
-    closeread(io) = nothing
-end
+"$_doc"
+startread(io) = nothing
+
+"$_doc"
+closeread(io) = nothing
 
 using MbedTLS: SSLContext
 tcpsocket(io::SSLContext)::TCPSocket = io.bio