Update solc version recommendations

slither/detectors/attributes/incorrect_solc.py

@@ -51,9 +51,7 @@ Consider using the latest version of Solidity for testing."""
     OLD_VERSION_TXT = "allows old versions"
     LESS_THAN_TXT = "uses lesser than"
 
-    TOO_RECENT_VERSION_TXT = (
-        "necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6"
-    )
+    TOO_RECENT_VERSION_TXT = "necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.8"
     BUGGY_VERSION_TXT = (
         "is known to contain severe issues (https://solidity.readthedocs.io/en/latest/bugs.html)"
     )
@@ -66,6 +64,10 @@ Consider using the latest version of Solidity for testing."""
         "0.6.12",
         "0.7.5",
         "0.7.6",
+        "0.8.4",
+        "0.8.5",
+        "0.8.6",
+        "0.8.7",
     ]
 
     # Indicates the versions that should not be used.
@@ -80,6 +82,8 @@ Consider using the latest version of Solidity for testing."""
         "^0.5.14",
         "0.6.9",
         "^0.6.9",
+        "0.8.8",
+        "^0.8.8",
     ]
 
     def _check_version(self, version):
@@ -87,6 +91,8 @@ Consider using the latest version of Solidity for testing."""
         if op and op not in [">", ">=", "^"]:
             return self.LESS_THAN_TXT
         version_number = ".".join(version[2:])
+        if version_number in self.BUGGY_VERSIONS:
+            return self.BUGGY_VERSION_TXT
         if version_number not in self.ALLOWED_VERSIONS:
             if list(map(int, version[2:])) > list(map(int, self.ALLOWED_VERSIONS[-1].split("."))):
                 return self.TOO_RECENT_VERSION_TXT
@@ -144,6 +150,15 @@ Consider using the latest version of Solidity for testing."""
                 results.append(json)
 
         if self.compilation_unit.solc_version not in self.ALLOWED_VERSIONS:
+
+            if self.compilation_unit.solc_version in self.BUGGY_VERSIONS:
+                info = [
+                    "solc-",
+                    self.compilation_unit.solc_version,
+                    " ",
+                    self.BUGGY_VERSION_TXT,
+                ]
+            else:
                 info = [
                     "solc-",
                     self.compilation_unit.solc_version,

tests/detectors/solc-version/0.5.14/static.sol.0.5.14.IncorrectSolc.json

@@ -38,10 +38,10 @@
         },
         {
             "elements": [],
-            "description": "solc-0.5.14 is not recommended for deployment\n",
-            "markdown": "solc-0.5.14 is not recommended for deployment\n",
+            "description": "solc-0.5.14 is known to contain severe issues (https://solidity.readthedocs.io/en/latest/bugs.html)",
+            "markdown": "solc-0.5.14 is known to contain severe issues (https://solidity.readthedocs.io/en/latest/bugs.html)",
             "first_markdown_element": "",
-            "id": "839b9aa9c05b3f4bfeb7aefa9b7a69d82a322bf527f21bbf7080a7855f003803",
+            "id": "d29c07fc4fd9f7602b9f99b17646c6ce1a1c10740d60888a7a706f2537f6e59d",
             "check": "solc-version",
             "impact": "Informational",
             "confidence": "High"