In Islam, Halal and Harram are not prone to change until Qiyamah. In a Hadith Prophet-saww says:
Rasool-Allah-saww said: ‘O you people! My-saww permissible is permissible up to the Day of Judgment, and my-saww prohibition is a prohibition up to the Day of Judgment. Indeed! And Allah-azwj has Explained these two in the Book, and I-saww have explained these two in my-saww ways, and my-saww Sunnah; and between these two are the uncertainties from Satan-la and innovations after me-saww. One who leaves these (uncertain matters) the matter of his Religion would be correct for him, and it would correct for him his magnanimity and his honour.
And one who wears these (uncertainties), and falls into these and pursues these would be like the one who pastures his sheep near the sanctuary, and one who pastures his cattle near the sanctuary, his self would snatch him to that he should be pasturing these inside the (gates of the) sanctuary. Certainly! For every king, there is a sanctuary. Indeed! And that the sanctuary of Allah-azwj Mighty and Majestic is His-azwj Prohibitions, therefore stop at the sanctuary of Allah-azwj and His-azwj Prohibitions’’.[1]
NB: Also see an article on Makruh and Mustahab The Kiraha, Makruh, Mustahab and Sunnah | Hubeali.com
وَ عَنْ إِسْمَاعِيلَ بْنِ جَابِرٍ عَنْ أَبِي عَبْدِ اللَّهِ ع أَنَّ اللَّهَ بَعَثَ مُحَمَّداً نَبِيّاً فَلَا نَبِيَّ بَعْدَهُ أَنْزَلَ عَلَيْهِ الْكِتَابَ فَخَتَمَ بِهِ الْكُتُبَ فَلَا كِتَابَ بَعْدَهُ
And from Ismail Bin Jabir,
‘From Abu Abdullah-asws: ‘Allah-azwj Sent Muhammad-saww as a Prophet-saww, and there will be no Prophet-saww after him-saww. Allah-azwj Revealed the Book unto him-saww and Ended the (previous) Books by it, so there is no Book after it.
أَحَلَّ فِيهِ حَلَالَهُ وَ حَرَّمَ فِيهِ حَرَامَهُ فَحَلَالُهُ حَلَالٌ إِلَى يَوْمِ الْقِيَامَةِ وَ حَرَامُهُ حَرَامٌ إِلَى يَوْمِ الْقِيَامَةِ فِيهِ نَبَأُ مَا قَبْلَكُمْ وَ خَبَرُ مَا بَعْدَكُمْ وَ فَصْلُ مَا بَيْنَكُمْ
He-azwj Permitted His-azwj Permissible(s) in it and Prohibited His-azwj Prohibitions in it. So, His-azwj Permissible(s) are Permissible up to the Day of Qiyaman, and His-azwj Prohibitions are Prohibited up to the Day of Qiyamah. In it are news of what was before you, and news of what is to be after you, and Decisions of what is between you all’.
ثُمَّ أَوْمَأَ بِيَدِهِ إِلَى صَدْرِهِ وَ قَالَ نَحْنُ نَعْلَمُهُ
Then he-asws gestured by his-asws hand to his-asws own chest and said: ‘We-asws know it!’’[2]
كش، رجال الكشي مُحَمَّدُ بْنُ مَسْعُودٍ عَنْ عَلِيِّ بْنِ مُحَمَّدٍ عَنْ مُحَمَّدِ بْنِ أَحْمَدَ عَنْ أَبِي إِسْحَاقَ عَنْ عَلِيِّ بْنِ مَعْبَدٍ عَنْ هِشَامِ بْنِ الْحَكَمِ قَالَ: سَأَلْتُ أَبَا عَبْدِ اللَّهِ ع بِمِنًى عَنْ خَمْسِمِائَةِ حَرْفٍ مِنَ الْكَلَامِ فَأَقْبَلْتُ أَقُولُ يَقُولُونَ كَذَا وَ كَذَا
(The book) ‘Rijal’ of Al Kashy – Muhammad Bin Masoud, from Ali Bin Muhammad, from Muhammad Bin Ahmad, from Abu Is’haq, from ali Bin Ma’bad, from Hisham Bin Al Hakam who said,
‘I asked Abu Abdullah-asws at Mina about five hundred letters from the speech. I accepted saying, ‘They are saying such and such’.
قَالَ فَيَقُولُ لِي قُلْ كَذَا فَقُلْتُ هَذَا الْحَلَالُ وَ الْحَرَامُ وَ الْقُرْآنُ أَعْلَمُ أَنَّكَ صَاحِبُهُ وَ أَعْلَمُ النَّاسِ بِهِ فَهَذَا الْكَلَامُ مِنْ أَيْنَ
He (the narrator) said, ‘He-asws said to me: ‘Say such and such’. I said, ‘This Permissible and the Prohibition, and Quran, I know that you-asws are its master, and the most learned of the people with it. So this speech is from where?’
فَقَالَ يَحْتَجُّ اللَّهُ عَلَى خَلْقِهِ بِحُجَّةٍ- لَا يَكُونُ عِنْدَهُ كُلَّمَا يَحْتَاجُونَ إِلَيْهِ.
He-asws said: ‘Allah-azwj Argues upon His-azwj creatures with His-azwj Argument. There does not happen to be with him all what they are needy to’’.[3]
[1] Bihar Al-Anwaar – V 2, The book of intellect, and the knowledge, and the ignorance, S 2 Ch 31 H 17
[2] Bihar Al Awaar – V 46, The book of History – Ja’far Al Sadiqasws, Ch 4 H 33 b
[3] Bihar Al Awaar – V 46, The book of History – Ja’far Al Sadiqasws, Ch 4 H 34