Drop testnet3 from docs and dev tools

Also use "test network" instead of "testnet" where appropriate (e.g.
because it also applies to signet).

contrib/devtools/gen-bitcoin-conf.sh

@@ -73,9 +73,6 @@ cat >> "${EXAMPLE_CONF_FILE}" << 'EOF'
 # Options for mainnet
 [main]
 
-# Options for testnet3
-[test]
-
 # Options for testnet4
 [testnet4]
 

contrib/linearize/example-linearize.cfg

@@ -7,9 +7,6 @@ host=127.0.0.1
 #mainnet default
 port=8332
 
-#testnet default
-#port=18332
-
 #regtest default
 #port=18443
 
@@ -26,11 +23,6 @@ netmagic=f9beb4d9
 genesis=000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
 input=/home/example/.bitcoin/blocks
 
-# testnet
-#netmagic=0b110907
-#genesis=000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943
-#input=/home/example/.bitcoin/testnet3/blocks
-
 # regtest
 #netmagic=fabfb5da
 #genesis=0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206

doc/REST-interface.md

@@ -3,7 +3,7 @@ Unauthenticated REST Interface
 
 The REST API can be enabled with the `-rest` option.
 
-The interface runs on the same port as the JSON-RPC interface, by default port 8332 for mainnet, port 18332 for testnet,
+The interface runs on the same port as the JSON-RPC interface, by default port 8332 for mainnet,
 port 48332 for testnet4, port 38332 for signet, and port 18443 for regtest.
 
 REST Interface consistency guarantees

doc/bitcoin-conf.md

@@ -41,7 +41,7 @@ Comments may appear in two ways:
 ### Network specific options
 
 Network specific options can be:
-- placed into sections with headers `[main]` (not `[mainnet]`), `[test]` (not `[testnet]`, for testnet3), `[testnet4]`, `[signet]` or `[regtest]`;
+- placed into sections with headers `[main]` (not `[mainnet]`), `[testnet4]`, `[signet]` or `[regtest]`;
 - prefixed with a chain name; e.g., `regtest.maxmempool=100`.
 
 Network specific options take precedence over non-network specific options.

doc/files.md

@@ -37,7 +37,6 @@ Windows  | `%LOCALAPPDATA%\Bitcoin\` <sup>[\[1\]](#note1)</sup>
 Chain option                     | Data directory path
 ---------------------------------|------------------------------
 `-chain=main` (default)          | *path_to_datadir*`/`
-`-chain=test` or `-testnet`      | *path_to_datadir*`/testnet3/`
 `-chain=testnet4` or `-testnet4` | *path_to_datadir*`/testnet4/`
 `-chain=signet` or `-signet`     | *path_to_datadir*`/signet/`
 `-chain=regtest` or `-regtest`   | *path_to_datadir*`/regtest/`

doc/release-process.md

@@ -313,14 +313,12 @@ Both variables are used as a guideline for how much space the user needs on thei
 Note that all values should be taken from a **fully synced** node and have an overhead of 5-10% added on top of its base value.
 
 To calculate `m_assumed_blockchain_size`, take the size in GiB of these directories:
-- For `mainnet` -> the data directory, excluding the `/testnet3`, `/testnet4`, `/signet`, and `/regtest` directories and any overly large files, e.g. a huge `debug.log`
-- For `testnet` -> `/testnet3`
+- For `mainnet` -> the data directory, excluding the `/testnet4`, `/signet`, and `/regtest` directories and any overly large files, e.g. a huge `debug.log`
 - For `testnet4` -> `/testnet4`
 - For `signet` -> `/signet`
 
 To calculate `m_assumed_chain_state_size`, take the size in GiB of these directories:
 - For `mainnet` -> `/chainstate`
-- For `testnet` -> `/testnet3/chainstate`
 - For `testnet4` -> `/testnet4/chainstate`
 - For `signet` -> `/signet/chainstate`
 

src/wallet/walletutil.cpp

@@ -81,7 +81,7 @@ WalletDescriptor GenerateWalletDescriptor(const CExtPubKey& master_key, const Ou
     } // no default case, so the compiler can warn about missing cases
     assert(!desc_prefix.empty());
 
-    // Mainnet derives at 0', testnet and regtest derive at 1'
+    // Mainnet derives at 0', test networks derive at 1'
     if (Params().IsTestChain()) {
         desc_prefix += "/1h";
     } else {

test/functional/test_framework/address.py

@@ -187,11 +187,11 @@ def address_to_scriptpubkey(address):
     """Converts a given address to the corresponding output script (scriptPubKey)."""
     version, payload = bech32_to_bytes(address)
     if version is not None:
-        return program_to_witness_script(version, payload) # testnet segwit scriptpubkey
+        return program_to_witness_script(version, payload) # test network segwit scriptpubkey
     payload, version = base58_to_byte(address)
-    if version == 111:  # testnet pubkey hash
+    if version == 111:  # test network pubkey hash
         return keyhash_to_p2pkh_script(payload)
-    elif version == 196:  # testnet script hash
+    elif version == 196:  # test network script hash
         return scripthash_to_p2sh_script(payload)
     # TODO: also support other address formats
     else: